Home / 2,781.92-3,818.60-2,460.14

Finding the Fourth Proportional to 2,781.92, 3,818.60 and 2,460.14

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Solution

The fourth proportional to 2,781.92, 3,818.60 and 2,460.14 is: 3,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.92 : 3,818.60 = 2,460.14 : x
  2. Step 2: Convert to fraction form
    2,781.92/3,818.60 = 2,460.14/x
  3. Step 3: Cross multiply
    2,781.92x = 3,818.60 × 2,460.14
  4. Step 4: Simplify right side
    2,781.92x = 9,394,259.21
  5. Step 5: Solve for x
    x = 9,394,259.21/2,781.92
  6. Step 6: Final answer
    x = 3,376.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.