Home / 5,715.78-7,882.64-3,591.52

Finding the Fourth Proportional to 5,715.78, 7,882.64 and 3,591.52

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Solution

The fourth proportional to 5,715.78, 7,882.64 and 3,591.52 is: 4,953.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.78 : 7,882.64 = 3,591.52 : x
  2. Step 2: Convert to fraction form
    5,715.78/7,882.64 = 3,591.52/x
  3. Step 3: Cross multiply
    5,715.78x = 7,882.64 × 3,591.52
  4. Step 4: Simplify right side
    5,715.78x = 28,310,659.21
  5. Step 5: Solve for x
    x = 28,310,659.21/5,715.78
  6. Step 6: Final answer
    x = 4,953.07

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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.