Home / 1,554.42-2,143.98-1,056.19

Finding the Fourth Proportional to 1,554.42, 2,143.98 and 1,056.19

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Solution

The fourth proportional to 1,554.42, 2,143.98 and 1,056.19 is: 1,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.42 : 2,143.98 = 1,056.19 : x
  2. Step 2: Convert to fraction form
    1,554.42/2,143.98 = 1,056.19/x
  3. Step 3: Cross multiply
    1,554.42x = 2,143.98 × 1,056.19
  4. Step 4: Simplify right side
    1,554.42x = 2,264,450.24
  5. Step 5: Solve for x
    x = 2,264,450.24/1,554.42
  6. Step 6: Final answer
    x = 1,456.78

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Half scale
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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.