Home / 5,290.11-7,932.13-1,591.25

Finding the Fourth Proportional to 5,290.11, 7,932.13 and 1,591.25

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Solution

The fourth proportional to 5,290.11, 7,932.13 and 1,591.25 is: 2,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.11 : 7,932.13 = 1,591.25 : x
  2. Step 2: Convert to fraction form
    5,290.11/7,932.13 = 1,591.25/x
  3. Step 3: Cross multiply
    5,290.11x = 7,932.13 × 1,591.25
  4. Step 4: Simplify right side
    5,290.11x = 12,621,958.22
  5. Step 5: Solve for x
    x = 12,621,958.22/5,290.11
  6. Step 6: Final answer
    x = 2,385.95

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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.