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Finding the Fourth Proportional to 1,358.47, 2,037.47 and 384.33

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Solution

The fourth proportional to 1,358.47, 2,037.47 and 384.33 is: 576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.47 : 2,037.47 = 384.33 : x
  2. Step 2: Convert to fraction form
    1,358.47/2,037.47 = 384.33/x
  3. Step 3: Cross multiply
    1,358.47x = 2,037.47 × 384.33
  4. Step 4: Simplify right side
    1,358.47x = 783,060.85
  5. Step 5: Solve for x
    x = 783,060.85/1,358.47
  6. Step 6: Final answer
    x = 576.43

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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.