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Finding the Fourth Proportional to 3,520.06, 5,280.22 and 922.92

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Solution

The fourth proportional to 3,520.06, 5,280.22 and 922.92 is: 1,384.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.06 : 5,280.22 = 922.92 : x
  2. Step 2: Convert to fraction form
    3,520.06/5,280.22 = 922.92/x
  3. Step 3: Cross multiply
    3,520.06x = 5,280.22 × 922.92
  4. Step 4: Simplify right side
    3,520.06x = 4,873,220.64
  5. Step 5: Solve for x
    x = 4,873,220.64/3,520.06
  6. Step 6: Final answer
    x = 1,384.41

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1.5x scale

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.