Home / 3,425.13-5,138.50-1,116.63

Finding the Fourth Proportional to 3,425.13, 5,138.50 and 1,116.63

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Solution

The fourth proportional to 3,425.13, 5,138.50 and 1,116.63 is: 1,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.13 : 5,138.50 = 1,116.63 : x
  2. Step 2: Convert to fraction form
    3,425.13/5,138.50 = 1,116.63/x
  3. Step 3: Cross multiply
    3,425.13x = 5,138.50 × 1,116.63
  4. Step 4: Simplify right side
    3,425.13x = 5,737,774.77
  5. Step 5: Solve for x
    x = 5,737,774.77/3,425.13
  6. Step 6: Final answer
    x = 1,675.20

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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.