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Finding the Fourth Proportional to 1,560.02, 2,340 and 738.38

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Solution

The fourth proportional to 1,560.02, 2,340 and 738.38 is: 1,107.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.02 : 2,340 = 738.38 : x
  2. Step 2: Convert to fraction form
    1,560.02/2,340 = 738.38/x
  3. Step 3: Cross multiply
    1,560.02x = 2,340 × 738.38
  4. Step 4: Simplify right side
    1,560.02x = 1,727,809.20
  5. Step 5: Solve for x
    x = 1,727,809.20/1,560.02
  6. Step 6: Final answer
    x = 1,107.56

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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.