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Finding the Fourth Proportional to 1,554.80, 2,145.46 and 925.24

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Solution

The fourth proportional to 1,554.80, 2,145.46 and 925.24 is: 1,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.80 : 2,145.46 = 925.24 : x
  2. Step 2: Convert to fraction form
    1,554.80/2,145.46 = 925.24/x
  3. Step 3: Cross multiply
    1,554.80x = 2,145.46 × 925.24
  4. Step 4: Simplify right side
    1,554.80x = 1,985,071.24
  5. Step 5: Solve for x
    x = 1,985,071.24/1,554.80
  6. Step 6: Final answer
    x = 1,276.73

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,555.80, 2,146.84 and 926.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.