Home / 2,428.14-3,350.97-1,380.42

Finding the Fourth Proportional to 2,428.14, 3,350.97 and 1,380.42

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Solution

The fourth proportional to 2,428.14, 3,350.97 and 1,380.42 is: 1,905.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.14 : 3,350.97 = 1,380.42 : x
  2. Step 2: Convert to fraction form
    2,428.14/3,350.97 = 1,380.42/x
  3. Step 3: Cross multiply
    2,428.14x = 3,350.97 × 1,380.42
  4. Step 4: Simplify right side
    2,428.14x = 4,625,746.01
  5. Step 5: Solve for x
    x = 4,625,746.01/2,428.14
  6. Step 6: Final answer
    x = 1,905.06

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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.