Home / 2,299.20-3,432.78-1,887.24

Finding the Fourth Proportional to 2,299.20, 3,432.78 and 1,887.24

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Solution

The fourth proportional to 2,299.20, 3,432.78 and 1,887.24 is: 2,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.20 : 3,432.78 = 1,887.24 : x
  2. Step 2: Convert to fraction form
    2,299.20/3,432.78 = 1,887.24/x
  3. Step 3: Cross multiply
    2,299.20x = 3,432.78 × 1,887.24
  4. Step 4: Simplify right side
    2,299.20x = 6,478,479.73
  5. Step 5: Solve for x
    x = 6,478,479.73/2,299.20
  6. Step 6: Final answer
    x = 2,817.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.