Home / 3,214.43-4,432.28-2,220.42

Finding the Fourth Proportional to 3,214.43, 4,432.28 and 2,220.42

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Solution

The fourth proportional to 3,214.43, 4,432.28 and 2,220.42 is: 3,061.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.43 : 4,432.28 = 2,220.42 : x
  2. Step 2: Convert to fraction form
    3,214.43/4,432.28 = 2,220.42/x
  3. Step 3: Cross multiply
    3,214.43x = 4,432.28 × 2,220.42
  4. Step 4: Simplify right side
    3,214.43x = 9,841,512.06
  5. Step 5: Solve for x
    x = 9,841,512.06/3,214.43
  6. Step 6: Final answer
    x = 3,061.67

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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.