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Finding the Fourth Proportional to 4,952.64, 7,430.16 and 1,489.89

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Solution

The fourth proportional to 4,952.64, 7,430.16 and 1,489.89 is: 2,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,952.64 : 7,430.16 = 1,489.89 : x
  2. Step 2: Convert to fraction form
    4,952.64/7,430.16 = 1,489.89/x
  3. Step 3: Cross multiply
    4,952.64x = 7,430.16 × 1,489.89
  4. Step 4: Simplify right side
    4,952.64x = 11,070,121.08
  5. Step 5: Solve for x
    x = 11,070,121.08/4,952.64
  6. Step 6: Final answer
    x = 2,235.20

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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.