Home / 5,488.12-7,573.50-3,129.88

Finding the Fourth Proportional to 5,488.12, 7,573.50 and 3,129.88

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Solution

The fourth proportional to 5,488.12, 7,573.50 and 3,129.88 is: 4,319.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.12 : 7,573.50 = 3,129.88 : x
  2. Step 2: Convert to fraction form
    5,488.12/7,573.50 = 3,129.88/x
  3. Step 3: Cross multiply
    5,488.12x = 7,573.50 × 3,129.88
  4. Step 4: Simplify right side
    5,488.12x = 23,704,146.18
  5. Step 5: Solve for x
    x = 23,704,146.18/5,488.12
  6. Step 6: Final answer
    x = 4,319.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.