Home / 1,874.97-2,587.55-1,129.16

Finding the Fourth Proportional to 1,874.97, 2,587.55 and 1,129.16

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Solution

The fourth proportional to 1,874.97, 2,587.55 and 1,129.16 is: 1,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.97 : 2,587.55 = 1,129.16 : x
  2. Step 2: Convert to fraction form
    1,874.97/2,587.55 = 1,129.16/x
  3. Step 3: Cross multiply
    1,874.97x = 2,587.55 × 1,129.16
  4. Step 4: Simplify right side
    1,874.97x = 2,921,757.96
  5. Step 5: Solve for x
    x = 2,921,757.96/1,874.97
  6. Step 6: Final answer
    x = 1,558.30

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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.