Home / 3,114.39-4,671.42-922.80

Finding the Fourth Proportional to 3,114.39, 4,671.42 and 922.80

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Solution

The fourth proportional to 3,114.39, 4,671.42 and 922.80 is: 1,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.39 : 4,671.42 = 922.80 : x
  2. Step 2: Convert to fraction form
    3,114.39/4,671.42 = 922.80/x
  3. Step 3: Cross multiply
    3,114.39x = 4,671.42 × 922.80
  4. Step 4: Simplify right side
    3,114.39x = 4,310,786.38
  5. Step 5: Solve for x
    x = 4,310,786.38/3,114.39
  6. Step 6: Final answer
    x = 1,384.15

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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.