Home / 5,278.59-7,920.18-2,507.22

Finding the Fourth Proportional to 5,278.59, 7,920.18 and 2,507.22

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Solution

The fourth proportional to 5,278.59, 7,920.18 and 2,507.22 is: 3,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.59 : 7,920.18 = 2,507.22 : x
  2. Step 2: Convert to fraction form
    5,278.59/7,920.18 = 2,507.22/x
  3. Step 3: Cross multiply
    5,278.59x = 7,920.18 × 2,507.22
  4. Step 4: Simplify right side
    5,278.59x = 19,857,594.10
  5. Step 5: Solve for x
    x = 19,857,594.10/5,278.59
  6. Step 6: Final answer
    x = 3,761.92

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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.