Home / 1,520.89-2,280.33-546.87

Finding the Fourth Proportional to 1,520.89, 2,280.33 and 546.87

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Solution

The fourth proportional to 1,520.89, 2,280.33 and 546.87 is: 819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.89 : 2,280.33 = 546.87 : x
  2. Step 2: Convert to fraction form
    1,520.89/2,280.33 = 546.87/x
  3. Step 3: Cross multiply
    1,520.89x = 2,280.33 × 546.87
  4. Step 4: Simplify right side
    1,520.89x = 1,247,037.00
  5. Step 5: Solve for x
    x = 1,247,037.00/1,520.89
  6. Step 6: Final answer
    x = 819.94

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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.