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Finding the Fourth Proportional to 1,497.31, 2,246.73 and 716.89

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Solution

The fourth proportional to 1,497.31, 2,246.73 and 716.89 is: 1,075.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.31 : 2,246.73 = 716.89 : x
  2. Step 2: Convert to fraction form
    1,497.31/2,246.73 = 716.89/x
  3. Step 3: Cross multiply
    1,497.31x = 2,246.73 × 716.89
  4. Step 4: Simplify right side
    1,497.31x = 1,610,658.27
  5. Step 5: Solve for x
    x = 1,610,658.27/1,497.31
  6. Step 6: Final answer
    x = 1,075.70

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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.