Home / 7,488.98-10,335.05-4,131.90

Finding the Fourth Proportional to 7,488.98, 10,335.05 and 4,131.90

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Solution

The fourth proportional to 7,488.98, 10,335.05 and 4,131.90 is: 5,702.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.98 : 10,335.05 = 4,131.90 : x
  2. Step 2: Convert to fraction form
    7,488.98/10,335.05 = 4,131.90/x
  3. Step 3: Cross multiply
    7,488.98x = 10,335.05 × 4,131.90
  4. Step 4: Simplify right side
    7,488.98x = 42,703,372.44
  5. Step 5: Solve for x
    x = 42,703,372.44/7,488.98
  6. Step 6: Final answer
    x = 5,702.17

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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.