Home / 1,154.12-1,731.20-384.62

Finding the Fourth Proportional to 1,154.12, 1,731.20 and 384.62

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Solution

The fourth proportional to 1,154.12, 1,731.20 and 384.62 is: 576.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.12 : 1,731.20 = 384.62 : x
  2. Step 2: Convert to fraction form
    1,154.12/1,731.20 = 384.62/x
  3. Step 3: Cross multiply
    1,154.12x = 1,731.20 × 384.62
  4. Step 4: Simplify right side
    1,154.12x = 665,854.14
  5. Step 5: Solve for x
    x = 665,854.14/1,154.12
  6. Step 6: Final answer
    x = 576.94

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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.