Home / 6,781.08-10,161.90-3,853.20

Finding the Fourth Proportional to 6,781.08, 10,161.90 and 3,853.20

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Solution

The fourth proportional to 6,781.08, 10,161.90 and 3,853.20 is: 5,774.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.08 : 10,161.90 = 3,853.20 : x
  2. Step 2: Convert to fraction form
    6,781.08/10,161.90 = 3,853.20/x
  3. Step 3: Cross multiply
    6,781.08x = 10,161.90 × 3,853.20
  4. Step 4: Simplify right side
    6,781.08x = 39,155,833.08
  5. Step 5: Solve for x
    x = 39,155,833.08/6,781.08
  6. Step 6: Final answer
    x = 5,774.28

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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.