Home / 3,007.14-4,151.70-2,380.20

Finding the Fourth Proportional to 3,007.14, 4,151.70 and 2,380.20

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Solution

The fourth proportional to 3,007.14, 4,151.70 and 2,380.20 is: 3,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.14 : 4,151.70 = 2,380.20 : x
  2. Step 2: Convert to fraction form
    3,007.14/4,151.70 = 2,380.20/x
  3. Step 3: Cross multiply
    3,007.14x = 4,151.70 × 2,380.20
  4. Step 4: Simplify right side
    3,007.14x = 9,881,876.34
  5. Step 5: Solve for x
    x = 9,881,876.34/3,007.14
  6. Step 6: Final answer
    x = 3,286.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.