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Finding the Fourth Proportional to 7,605.87, 11,402.15 and 3,655.16

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Solution

The fourth proportional to 7,605.87, 11,402.15 and 3,655.16 is: 5,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.87 : 11,402.15 = 3,655.16 : x
  2. Step 2: Convert to fraction form
    7,605.87/11,402.15 = 3,655.16/x
  3. Step 3: Cross multiply
    7,605.87x = 11,402.15 × 3,655.16
  4. Step 4: Simplify right side
    7,605.87x = 41,676,607.31
  5. Step 5: Solve for x
    x = 41,676,607.31/7,605.87
  6. Step 6: Final answer
    x = 5,479.53

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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.