Home / 10,591.28-15,887.68-2,800

Finding the Fourth Proportional to 10,591.28, 15,887.68 and 2,800

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Solution

The fourth proportional to 10,591.28, 15,887.68 and 2,800 is: 4,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,591.28 : 15,887.68 = 2,800 : x
  2. Step 2: Convert to fraction form
    10,591.28/15,887.68 = 2,800/x
  3. Step 3: Cross multiply
    10,591.28x = 15,887.68 × 2,800
  4. Step 4: Simplify right side
    10,591.28x = 44,485,504
  5. Step 5: Solve for x
    x = 44,485,504/10,591.28
  6. Step 6: Final answer
    x = 4,200.20

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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.