Home / 7,714.28-10,645.72-4,177.50

Finding the Fourth Proportional to 7,714.28, 10,645.72 and 4,177.50

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Solution

The fourth proportional to 7,714.28, 10,645.72 and 4,177.50 is: 5,764.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.28 : 10,645.72 = 4,177.50 : x
  2. Step 2: Convert to fraction form
    7,714.28/10,645.72 = 4,177.50/x
  3. Step 3: Cross multiply
    7,714.28x = 10,645.72 × 4,177.50
  4. Step 4: Simplify right side
    7,714.28x = 44,472,421.18
  5. Step 5: Solve for x
    x = 44,472,421.18/7,714.28
  6. Step 6: Final answer
    x = 5,764.95

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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.