Home / 3,214.60-4,432.26-2,218.30

Finding the Fourth Proportional to 3,214.60, 4,432.26 and 2,218.30

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Solution

The fourth proportional to 3,214.60, 4,432.26 and 2,218.30 is: 3,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.60 : 4,432.26 = 2,218.30 : x
  2. Step 2: Convert to fraction form
    3,214.60/4,432.26 = 2,218.30/x
  3. Step 3: Cross multiply
    3,214.60x = 4,432.26 × 2,218.30
  4. Step 4: Simplify right side
    3,214.60x = 9,832,082.36
  5. Step 5: Solve for x
    x = 9,832,082.36/3,214.60
  6. Step 6: Final answer
    x = 3,058.57

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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.