Home / 1,154.20-1,732.40-1,073.76

Finding the Fourth Proportional to 1,154.20, 1,732.40 and 1,073.76

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Solution

The fourth proportional to 1,154.20, 1,732.40 and 1,073.76 is: 1,611.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.20 : 1,732.40 = 1,073.76 : x
  2. Step 2: Convert to fraction form
    1,154.20/1,732.40 = 1,073.76/x
  3. Step 3: Cross multiply
    1,154.20x = 1,732.40 × 1,073.76
  4. Step 4: Simplify right side
    1,154.20x = 1,860,181.82
  5. Step 5: Solve for x
    x = 1,860,181.82/1,154.20
  6. Step 6: Final answer
    x = 1,611.66

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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.