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Finding the Fourth Proportional to 2,353.72, 3,531.04 and 710.20

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Solution

The fourth proportional to 2,353.72, 3,531.04 and 710.20 is: 1,065.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.72 : 3,531.04 = 710.20 : x
  2. Step 2: Convert to fraction form
    2,353.72/3,531.04 = 710.20/x
  3. Step 3: Cross multiply
    2,353.72x = 3,531.04 × 710.20
  4. Step 4: Simplify right side
    2,353.72x = 2,507,744.61
  5. Step 5: Solve for x
    x = 2,507,744.61/2,353.72
  6. Step 6: Final answer
    x = 1,065.44

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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.