Home / 6,781.20-10,171.91-1,851.24

Finding the Fourth Proportional to 6,781.20, 10,171.91 and 1,851.24

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Solution

The fourth proportional to 6,781.20, 10,171.91 and 1,851.24 is: 2,776.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.20 : 10,171.91 = 1,851.24 : x
  2. Step 2: Convert to fraction form
    6,781.20/10,171.91 = 1,851.24/x
  3. Step 3: Cross multiply
    6,781.20x = 10,171.91 × 1,851.24
  4. Step 4: Simplify right side
    6,781.20x = 18,830,637.41
  5. Step 5: Solve for x
    x = 18,830,637.41/6,781.20
  6. Step 6: Final answer
    x = 2,776.89

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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.