Home / 2,269.20-3,136.68-2,087.76

Finding the Fourth Proportional to 2,269.20, 3,136.68 and 2,087.76

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Solution

The fourth proportional to 2,269.20, 3,136.68 and 2,087.76 is: 2,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.20 : 3,136.68 = 2,087.76 : x
  2. Step 2: Convert to fraction form
    2,269.20/3,136.68 = 2,087.76/x
  3. Step 3: Cross multiply
    2,269.20x = 3,136.68 × 2,087.76
  4. Step 4: Simplify right side
    2,269.20x = 6,548,635.04
  5. Step 5: Solve for x
    x = 6,548,635.04/2,269.20
  6. Step 6: Final answer
    x = 2,885.88

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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.