Home / 6,191.31-9,287.28-1,809.12

Finding the Fourth Proportional to 6,191.31, 9,287.28 and 1,809.12

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Solution

The fourth proportional to 6,191.31, 9,287.28 and 1,809.12 is: 2,713.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,191.31 : 9,287.28 = 1,809.12 : x
  2. Step 2: Convert to fraction form
    6,191.31/9,287.28 = 1,809.12/x
  3. Step 3: Cross multiply
    6,191.31x = 9,287.28 × 1,809.12
  4. Step 4: Simplify right side
    6,191.31x = 16,801,803.99
  5. Step 5: Solve for x
    x = 16,801,803.99/6,191.31
  6. Step 6: Final answer
    x = 2,713.77

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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.