Home / 1,520.54-2,280.90-480.58

Finding the Fourth Proportional to 1,520.54, 2,280.90 and 480.58

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Solution

The fourth proportional to 1,520.54, 2,280.90 and 480.58 is: 720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.54 : 2,280.90 = 480.58 : x
  2. Step 2: Convert to fraction form
    1,520.54/2,280.90 = 480.58/x
  3. Step 3: Cross multiply
    1,520.54x = 2,280.90 × 480.58
  4. Step 4: Simplify right side
    1,520.54x = 1,096,154.92
  5. Step 5: Solve for x
    x = 1,096,154.92/1,520.54
  6. Step 6: Final answer
    x = 720.90

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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.