Home / 5,578.28-7,708.26-4,003.88

Finding the Fourth Proportional to 5,578.28, 7,708.26 and 4,003.88

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Solution

The fourth proportional to 5,578.28, 7,708.26 and 4,003.88 is: 5,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.28 : 7,708.26 = 4,003.88 : x
  2. Step 2: Convert to fraction form
    5,578.28/7,708.26 = 4,003.88/x
  3. Step 3: Cross multiply
    5,578.28x = 7,708.26 × 4,003.88
  4. Step 4: Simplify right side
    5,578.28x = 30,862,948.05
  5. Step 5: Solve for x
    x = 30,862,948.05/5,578.28
  6. Step 6: Final answer
    x = 5,532.70

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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.