Home / 7,717.28-10,649.83-4,180.55

Finding the Fourth Proportional to 7,717.28, 10,649.83 and 4,180.55

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Solution

The fourth proportional to 7,717.28, 10,649.83 and 4,180.55 is: 5,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.28 : 10,649.83 = 4,180.55 : x
  2. Step 2: Convert to fraction form
    7,717.28/10,649.83 = 4,180.55/x
  3. Step 3: Cross multiply
    7,717.28x = 10,649.83 × 4,180.55
  4. Step 4: Simplify right side
    7,717.28x = 44,522,125.90
  5. Step 5: Solve for x
    x = 44,522,125.90/7,717.28
  6. Step 6: Final answer
    x = 5,769.15

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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.