Home / 2,170.11-2,995.07-1,425.18

Finding the Fourth Proportional to 2,170.11, 2,995.07 and 1,425.18

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Solution

The fourth proportional to 2,170.11, 2,995.07 and 1,425.18 is: 1,966.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.11 : 2,995.07 = 1,425.18 : x
  2. Step 2: Convert to fraction form
    2,170.11/2,995.07 = 1,425.18/x
  3. Step 3: Cross multiply
    2,170.11x = 2,995.07 × 1,425.18
  4. Step 4: Simplify right side
    2,170.11x = 4,268,513.86
  5. Step 5: Solve for x
    x = 4,268,513.86/2,170.11
  6. Step 6: Final answer
    x = 1,966.96

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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.