Home / 1,520.21-2,280.54-546.09

Finding the Fourth Proportional to 1,520.21, 2,280.54 and 546.09

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Solution

The fourth proportional to 1,520.21, 2,280.54 and 546.09 is: 819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.21 : 2,280.54 = 546.09 : x
  2. Step 2: Convert to fraction form
    1,520.21/2,280.54 = 546.09/x
  3. Step 3: Cross multiply
    1,520.21x = 2,280.54 × 546.09
  4. Step 4: Simplify right side
    1,520.21x = 1,245,368.69
  5. Step 5: Solve for x
    x = 1,245,368.69/1,520.21
  6. Step 6: Final answer
    x = 819.21

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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.