Home / 3,182.11-4,390.78-1,765.57

Finding the Fourth Proportional to 3,182.11, 4,390.78 and 1,765.57

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Solution

The fourth proportional to 3,182.11, 4,390.78 and 1,765.57 is: 2,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.11 : 4,390.78 = 1,765.57 : x
  2. Step 2: Convert to fraction form
    3,182.11/4,390.78 = 1,765.57/x
  3. Step 3: Cross multiply
    3,182.11x = 4,390.78 × 1,765.57
  4. Step 4: Simplify right side
    3,182.11x = 7,752,242.91
  5. Step 5: Solve for x
    x = 7,752,242.91/3,182.11
  6. Step 6: Final answer
    x = 2,436.20

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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.