Home / 3,711.04-5,121.06-2,139.16

Finding the Fourth Proportional to 3,711.04, 5,121.06 and 2,139.16

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Solution

The fourth proportional to 3,711.04, 5,121.06 and 2,139.16 is: 2,951.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.04 : 5,121.06 = 2,139.16 : x
  2. Step 2: Convert to fraction form
    3,711.04/5,121.06 = 2,139.16/x
  3. Step 3: Cross multiply
    3,711.04x = 5,121.06 × 2,139.16
  4. Step 4: Simplify right side
    3,711.04x = 10,954,766.71
  5. Step 5: Solve for x
    x = 10,954,766.71/3,711.04
  6. Step 6: Final answer
    x = 2,951.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.