Home / 4,127.40-6,176.70-3,781.80

Finding the Fourth Proportional to 4,127.40, 6,176.70 and 3,781.80

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Solution

The fourth proportional to 4,127.40, 6,176.70 and 3,781.80 is: 5,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.40 : 6,176.70 = 3,781.80 : x
  2. Step 2: Convert to fraction form
    4,127.40/6,176.70 = 3,781.80/x
  3. Step 3: Cross multiply
    4,127.40x = 6,176.70 × 3,781.80
  4. Step 4: Simplify right side
    4,127.40x = 23,359,044.06
  5. Step 5: Solve for x
    x = 23,359,044.06/4,127.40
  6. Step 6: Final answer
    x = 5,659.51

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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.