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Finding the Fourth Proportional to 1,599.30, 2,397.15 and 674.70

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Solution

The fourth proportional to 1,599.30, 2,397.15 and 674.70 is: 1,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599.30 : 2,397.15 = 674.70 : x
  2. Step 2: Convert to fraction form
    1,599.30/2,397.15 = 674.70/x
  3. Step 3: Cross multiply
    1,599.30x = 2,397.15 × 674.70
  4. Step 4: Simplify right side
    1,599.30x = 1,617,357.11
  5. Step 5: Solve for x
    x = 1,617,357.11/1,599.30
  6. Step 6: Final answer
    x = 1,011.29

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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.