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Finding the Fourth Proportional to 2,220.53, 3,331.17 and 922.10

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Solution

The fourth proportional to 2,220.53, 3,331.17 and 922.10 is: 1,383.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.53 : 3,331.17 = 922.10 : x
  2. Step 2: Convert to fraction form
    2,220.53/3,331.17 = 922.10/x
  3. Step 3: Cross multiply
    2,220.53x = 3,331.17 × 922.10
  4. Step 4: Simplify right side
    2,220.53x = 3,071,671.86
  5. Step 5: Solve for x
    x = 3,071,671.86/2,220.53
  6. Step 6: Final answer
    x = 1,383.31

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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.