Home / 2,480.86-3,719.40-1,934.20

Finding the Fourth Proportional to 2,480.86, 3,719.40 and 1,934.20

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Solution

The fourth proportional to 2,480.86, 3,719.40 and 1,934.20 is: 2,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.86 : 3,719.40 = 1,934.20 : x
  2. Step 2: Convert to fraction form
    2,480.86/3,719.40 = 1,934.20/x
  3. Step 3: Cross multiply
    2,480.86x = 3,719.40 × 1,934.20
  4. Step 4: Simplify right side
    2,480.86x = 7,194,063.48
  5. Step 5: Solve for x
    x = 7,194,063.48/2,480.86
  6. Step 6: Final answer
    x = 2,899.83

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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.