Home / 6,191.28-9,287.52-1,808.80

Finding the Fourth Proportional to 6,191.28, 9,287.52 and 1,808.80

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Solution

The fourth proportional to 6,191.28, 9,287.52 and 1,808.80 is: 2,713.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,191.28 : 9,287.52 = 1,808.80 : x
  2. Step 2: Convert to fraction form
    6,191.28/9,287.52 = 1,808.80/x
  3. Step 3: Cross multiply
    6,191.28x = 9,287.52 × 1,808.80
  4. Step 4: Simplify right side
    6,191.28x = 16,799,266.18
  5. Step 5: Solve for x
    x = 16,799,266.18/6,191.28
  6. Step 6: Final answer
    x = 2,713.38

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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.