Home / 1,358.13-2,037.23-384.20

Finding the Fourth Proportional to 1,358.13, 2,037.23 and 384.20

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Solution

The fourth proportional to 1,358.13, 2,037.23 and 384.20 is: 576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.13 : 2,037.23 = 384.20 : x
  2. Step 2: Convert to fraction form
    1,358.13/2,037.23 = 384.20/x
  3. Step 3: Cross multiply
    1,358.13x = 2,037.23 × 384.20
  4. Step 4: Simplify right side
    1,358.13x = 782,691.66
  5. Step 5: Solve for x
    x = 782,691.66/1,358.13
  6. Step 6: Final answer
    x = 576.30

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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.