Home / 3,191.46-4,403.34-2,146.56

Finding the Fourth Proportional to 3,191.46, 4,403.34 and 2,146.56

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Solution

The fourth proportional to 3,191.46, 4,403.34 and 2,146.56 is: 2,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.46 : 4,403.34 = 2,146.56 : x
  2. Step 2: Convert to fraction form
    3,191.46/4,403.34 = 2,146.56/x
  3. Step 3: Cross multiply
    3,191.46x = 4,403.34 × 2,146.56
  4. Step 4: Simplify right side
    3,191.46x = 9,452,033.51
  5. Step 5: Solve for x
    x = 9,452,033.51/3,191.46
  6. Step 6: Final answer
    x = 2,961.66

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Half scale
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Double scale
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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.