Home / 2,587.38-3,881.07-1,126.19

Finding the Fourth Proportional to 2,587.38, 3,881.07 and 1,126.19

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Solution

The fourth proportional to 2,587.38, 3,881.07 and 1,126.19 is: 1,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.38 : 3,881.07 = 1,126.19 : x
  2. Step 2: Convert to fraction form
    2,587.38/3,881.07 = 1,126.19/x
  3. Step 3: Cross multiply
    2,587.38x = 3,881.07 × 1,126.19
  4. Step 4: Simplify right side
    2,587.38x = 4,370,822.22
  5. Step 5: Solve for x
    x = 4,370,822.22/2,587.38
  6. Step 6: Final answer
    x = 1,689.29

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.