Home / 3,167.19-4,372.11-2,421.18

Finding the Fourth Proportional to 3,167.19, 4,372.11 and 2,421.18

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Solution

The fourth proportional to 3,167.19, 4,372.11 and 2,421.18 is: 3,342.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.19 : 4,372.11 = 2,421.18 : x
  2. Step 2: Convert to fraction form
    3,167.19/4,372.11 = 2,421.18/x
  3. Step 3: Cross multiply
    3,167.19x = 4,372.11 × 2,421.18
  4. Step 4: Simplify right side
    3,167.19x = 10,585,665.29
  5. Step 5: Solve for x
    x = 10,585,665.29/3,167.19
  6. Step 6: Final answer
    x = 3,342.29

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Half scale
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Double scale
Find fourth proportional to 3,168.19, 4,373.49 and 2,422.18
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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.