Home / 4,061.18-6,091.78-1,139.42

Finding the Fourth Proportional to 4,061.18, 6,091.78 and 1,139.42

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Solution

The fourth proportional to 4,061.18, 6,091.78 and 1,139.42 is: 1,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,061.18 : 6,091.78 = 1,139.42 : x
  2. Step 2: Convert to fraction form
    4,061.18/6,091.78 = 1,139.42/x
  3. Step 3: Cross multiply
    4,061.18x = 6,091.78 × 1,139.42
  4. Step 4: Simplify right side
    4,061.18x = 6,941,095.97
  5. Step 5: Solve for x
    x = 6,941,095.97/4,061.18
  6. Step 6: Final answer
    x = 1,709.13

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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.