Home / 2,587.16-3,878.10-1,545.90

Finding the Fourth Proportional to 2,587.16, 3,878.10 and 1,545.90

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Solution

The fourth proportional to 2,587.16, 3,878.10 and 1,545.90 is: 2,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.16 : 3,878.10 = 1,545.90 : x
  2. Step 2: Convert to fraction form
    2,587.16/3,878.10 = 1,545.90/x
  3. Step 3: Cross multiply
    2,587.16x = 3,878.10 × 1,545.90
  4. Step 4: Simplify right side
    2,587.16x = 5,995,154.79
  5. Step 5: Solve for x
    x = 5,995,154.79/2,587.16
  6. Step 6: Final answer
    x = 2,317.28

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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.