Home / 3,212.28-4,430.16-2,162.52

Finding the Fourth Proportional to 3,212.28, 4,430.16 and 2,162.52

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Solution

The fourth proportional to 3,212.28, 4,430.16 and 2,162.52 is: 2,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.28 : 4,430.16 = 2,162.52 : x
  2. Step 2: Convert to fraction form
    3,212.28/4,430.16 = 2,162.52/x
  3. Step 3: Cross multiply
    3,212.28x = 4,430.16 × 2,162.52
  4. Step 4: Simplify right side
    3,212.28x = 9,580,309.60
  5. Step 5: Solve for x
    x = 9,580,309.60/3,212.28
  6. Step 6: Final answer
    x = 2,982.40

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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.