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Finding the Fourth Proportional to 3,114.10, 4,669.71 and 922.30

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Solution

The fourth proportional to 3,114.10, 4,669.71 and 922.30 is: 1,383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.10 : 4,669.71 = 922.30 : x
  2. Step 2: Convert to fraction form
    3,114.10/4,669.71 = 922.30/x
  3. Step 3: Cross multiply
    3,114.10x = 4,669.71 × 922.30
  4. Step 4: Simplify right side
    3,114.10x = 4,306,873.53
  5. Step 5: Solve for x
    x = 4,306,873.53/3,114.10
  6. Step 6: Final answer
    x = 1,383.02

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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.