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Finding the Fourth Proportional to 6,402.56, 9,599.88 and 2,505.20

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Solution

The fourth proportional to 6,402.56, 9,599.88 and 2,505.20 is: 3,756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402.56 : 9,599.88 = 2,505.20 : x
  2. Step 2: Convert to fraction form
    6,402.56/9,599.88 = 2,505.20/x
  3. Step 3: Cross multiply
    6,402.56x = 9,599.88 × 2,505.20
  4. Step 4: Simplify right side
    6,402.56x = 24,049,619.38
  5. Step 5: Solve for x
    x = 24,049,619.38/6,402.56
  6. Step 6: Final answer
    x = 3,756.25

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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.