Home / 6,781.18-10,159.08-3,999.55

Finding the Fourth Proportional to 6,781.18, 10,159.08 and 3,999.55

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Solution

The fourth proportional to 6,781.18, 10,159.08 and 3,999.55 is: 5,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.18 : 10,159.08 = 3,999.55 : x
  2. Step 2: Convert to fraction form
    6,781.18/10,159.08 = 3,999.55/x
  3. Step 3: Cross multiply
    6,781.18x = 10,159.08 × 3,999.55
  4. Step 4: Simplify right side
    6,781.18x = 40,631,748.41
  5. Step 5: Solve for x
    x = 40,631,748.41/6,781.18
  6. Step 6: Final answer
    x = 5,991.84

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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.