Home / 3,414.60-5,121.90-2,430.45

Finding the Fourth Proportional to 3,414.60, 5,121.90 and 2,430.45

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Solution

The fourth proportional to 3,414.60, 5,121.90 and 2,430.45 is: 3,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.60 : 5,121.90 = 2,430.45 : x
  2. Step 2: Convert to fraction form
    3,414.60/5,121.90 = 2,430.45/x
  3. Step 3: Cross multiply
    3,414.60x = 5,121.90 × 2,430.45
  4. Step 4: Simplify right side
    3,414.60x = 12,448,521.86
  5. Step 5: Solve for x
    x = 12,448,521.86/3,414.60
  6. Step 6: Final answer
    x = 3,645.68

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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.