Home / 5,200.11-7,799.25-1,689.61

Finding the Fourth Proportional to 5,200.11, 7,799.25 and 1,689.61

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Solution

The fourth proportional to 5,200.11, 7,799.25 and 1,689.61 is: 2,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.11 : 7,799.25 = 1,689.61 : x
  2. Step 2: Convert to fraction form
    5,200.11/7,799.25 = 1,689.61/x
  3. Step 3: Cross multiply
    5,200.11x = 7,799.25 × 1,689.61
  4. Step 4: Simplify right side
    5,200.11x = 13,177,678.00
  5. Step 5: Solve for x
    x = 13,177,678.00/5,200.11
  6. Step 6: Final answer
    x = 2,534.12

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1.5x scale

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.