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Finding the Fourth Proportional to 2,613, 3,587.60 and 2,545.32

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Solution

The fourth proportional to 2,613, 3,587.60 and 2,545.32 is: 3,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613 : 3,587.60 = 2,545.32 : x
  2. Step 2: Convert to fraction form
    2,613/3,587.60 = 2,545.32/x
  3. Step 3: Cross multiply
    2,613x = 3,587.60 × 2,545.32
  4. Step 4: Simplify right side
    2,613x = 9,131,590.03
  5. Step 5: Solve for x
    x = 9,131,590.03/2,613
  6. Step 6: Final answer
    x = 3,494.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.