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Finding the Fourth Proportional to 1,358.44, 1,874.68 and 737.44

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Solution

The fourth proportional to 1,358.44, 1,874.68 and 737.44 is: 1,017.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.44 : 1,874.68 = 737.44 : x
  2. Step 2: Convert to fraction form
    1,358.44/1,874.68 = 737.44/x
  3. Step 3: Cross multiply
    1,358.44x = 1,874.68 × 737.44
  4. Step 4: Simplify right side
    1,358.44x = 1,382,457.49
  5. Step 5: Solve for x
    x = 1,382,457.49/1,358.44
  6. Step 6: Final answer
    x = 1,017.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.