Home / 6,521.97-9,000.32-3,689.29

Finding the Fourth Proportional to 6,521.97, 9,000.32 and 3,689.29

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Solution

The fourth proportional to 6,521.97, 9,000.32 and 3,689.29 is: 5,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521.97 : 9,000.32 = 3,689.29 : x
  2. Step 2: Convert to fraction form
    6,521.97/9,000.32 = 3,689.29/x
  3. Step 3: Cross multiply
    6,521.97x = 9,000.32 × 3,689.29
  4. Step 4: Simplify right side
    6,521.97x = 33,204,775.06
  5. Step 5: Solve for x
    x = 33,204,775.06/6,521.97
  6. Step 6: Final answer
    x = 5,091.22

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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.