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Finding the Fourth Proportional to 1,497.56, 2,242.92 and 718.11

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Solution

The fourth proportional to 1,497.56, 2,242.92 and 718.11 is: 1,075.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.56 : 2,242.92 = 718.11 : x
  2. Step 2: Convert to fraction form
    1,497.56/2,242.92 = 718.11/x
  3. Step 3: Cross multiply
    1,497.56x = 2,242.92 × 718.11
  4. Step 4: Simplify right side
    1,497.56x = 1,610,663.28
  5. Step 5: Solve for x
    x = 1,610,663.28/1,497.56
  6. Step 6: Final answer
    x = 1,075.53

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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.