Home / 6,131.40-9,191.92-2,842.80

Finding the Fourth Proportional to 6,131.40, 9,191.92 and 2,842.80

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Solution

The fourth proportional to 6,131.40, 9,191.92 and 2,842.80 is: 4,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.40 : 9,191.92 = 2,842.80 : x
  2. Step 2: Convert to fraction form
    6,131.40/9,191.92 = 2,842.80/x
  3. Step 3: Cross multiply
    6,131.40x = 9,191.92 × 2,842.80
  4. Step 4: Simplify right side
    6,131.40x = 26,130,790.18
  5. Step 5: Solve for x
    x = 26,130,790.18/6,131.40
  6. Step 6: Final answer
    x = 4,261.80

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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.