Home / 5,318.88-7,340.47-3,080.79

Finding the Fourth Proportional to 5,318.88, 7,340.47 and 3,080.79

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Solution

The fourth proportional to 5,318.88, 7,340.47 and 3,080.79 is: 4,251.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.88 : 7,340.47 = 3,080.79 : x
  2. Step 2: Convert to fraction form
    5,318.88/7,340.47 = 3,080.79/x
  3. Step 3: Cross multiply
    5,318.88x = 7,340.47 × 3,080.79
  4. Step 4: Simplify right side
    5,318.88x = 22,614,446.57
  5. Step 5: Solve for x
    x = 22,614,446.57/5,318.88
  6. Step 6: Final answer
    x = 4,251.73

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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.