Home / 1,555.08-2,146.25-925.63

Finding the Fourth Proportional to 1,555.08, 2,146.25 and 925.63

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Solution

The fourth proportional to 1,555.08, 2,146.25 and 925.63 is: 1,277.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.08 : 2,146.25 = 925.63 : x
  2. Step 2: Convert to fraction form
    1,555.08/2,146.25 = 925.63/x
  3. Step 3: Cross multiply
    1,555.08x = 2,146.25 × 925.63
  4. Step 4: Simplify right side
    1,555.08x = 1,986,633.39
  5. Step 5: Solve for x
    x = 1,986,633.39/1,555.08
  6. Step 6: Final answer
    x = 1,277.52

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Double scale
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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.