Home / 7,310.30-10,087.43-4,122.88

Finding the Fourth Proportional to 7,310.30, 10,087.43 and 4,122.88

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Solution

The fourth proportional to 7,310.30, 10,087.43 and 4,122.88 is: 5,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.30 : 10,087.43 = 4,122.88 : x
  2. Step 2: Convert to fraction form
    7,310.30/10,087.43 = 4,122.88/x
  3. Step 3: Cross multiply
    7,310.30x = 10,087.43 × 4,122.88
  4. Step 4: Simplify right side
    7,310.30x = 41,589,217.57
  5. Step 5: Solve for x
    x = 41,589,217.57/7,310.30
  6. Step 6: Final answer
    x = 5,689.13

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1.5x scale

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.