Home / 6,111.20-9,165.78-1,727.66

Finding the Fourth Proportional to 6,111.20, 9,165.78 and 1,727.66

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Solution

The fourth proportional to 6,111.20, 9,165.78 and 1,727.66 is: 2,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.20 : 9,165.78 = 1,727.66 : x
  2. Step 2: Convert to fraction form
    6,111.20/9,165.78 = 1,727.66/x
  3. Step 3: Cross multiply
    6,111.20x = 9,165.78 × 1,727.66
  4. Step 4: Simplify right side
    6,111.20x = 15,835,351.47
  5. Step 5: Solve for x
    x = 15,835,351.47/6,111.20
  6. Step 6: Final answer
    x = 2,591.20

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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.