Home / 5,318.24-7,339.60-3,080.80

Finding the Fourth Proportional to 5,318.24, 7,339.60 and 3,080.80

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Solution

The fourth proportional to 5,318.24, 7,339.60 and 3,080.80 is: 4,251.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.24 : 7,339.60 = 3,080.80 : x
  2. Step 2: Convert to fraction form
    5,318.24/7,339.60 = 3,080.80/x
  3. Step 3: Cross multiply
    5,318.24x = 7,339.60 × 3,080.80
  4. Step 4: Simplify right side
    5,318.24x = 22,611,839.68
  5. Step 5: Solve for x
    x = 22,611,839.68/5,318.24
  6. Step 6: Final answer
    x = 4,251.75

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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.