Home / 5,780.24-7,976.76-3,127.68

Finding the Fourth Proportional to 5,780.24, 7,976.76 and 3,127.68

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Solution

The fourth proportional to 5,780.24, 7,976.76 and 3,127.68 is: 4,316.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.24 : 7,976.76 = 3,127.68 : x
  2. Step 2: Convert to fraction form
    5,780.24/7,976.76 = 3,127.68/x
  3. Step 3: Cross multiply
    5,780.24x = 7,976.76 × 3,127.68
  4. Step 4: Simplify right side
    5,780.24x = 24,948,752.72
  5. Step 5: Solve for x
    x = 24,948,752.72/5,780.24
  6. Step 6: Final answer
    x = 4,316.21

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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.