Home / 5,200.06-7,177.78-4,139.76

Finding the Fourth Proportional to 5,200.06, 7,177.78 and 4,139.76

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Solution

The fourth proportional to 5,200.06, 7,177.78 and 4,139.76 is: 5,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.06 : 7,177.78 = 4,139.76 : x
  2. Step 2: Convert to fraction form
    5,200.06/7,177.78 = 4,139.76/x
  3. Step 3: Cross multiply
    5,200.06x = 7,177.78 × 4,139.76
  4. Step 4: Simplify right side
    5,200.06x = 29,714,286.53
  5. Step 5: Solve for x
    x = 29,714,286.53/5,200.06
  6. Step 6: Final answer
    x = 5,714.22

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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.