Home / 2,925.28-4,393.68-2,591.20

Finding the Fourth Proportional to 2,925.28, 4,393.68 and 2,591.20

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Solution

The fourth proportional to 2,925.28, 4,393.68 and 2,591.20 is: 3,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.28 : 4,393.68 = 2,591.20 : x
  2. Step 2: Convert to fraction form
    2,925.28/4,393.68 = 2,591.20/x
  3. Step 3: Cross multiply
    2,925.28x = 4,393.68 × 2,591.20
  4. Step 4: Simplify right side
    2,925.28x = 11,384,903.62
  5. Step 5: Solve for x
    x = 11,384,903.62/2,925.28
  6. Step 6: Final answer
    x = 3,891.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.