Home / 3,140.39-4,711.97-1,192.14

Finding the Fourth Proportional to 3,140.39, 4,711.97 and 1,192.14

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Solution

The fourth proportional to 3,140.39, 4,711.97 and 1,192.14 is: 1,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.39 : 4,711.97 = 1,192.14 : x
  2. Step 2: Convert to fraction form
    3,140.39/4,711.97 = 1,192.14/x
  3. Step 3: Cross multiply
    3,140.39x = 4,711.97 × 1,192.14
  4. Step 4: Simplify right side
    3,140.39x = 5,617,330.90
  5. Step 5: Solve for x
    x = 5,617,330.90/3,140.39
  6. Step 6: Final answer
    x = 1,788.74

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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.