Home / 3,212.52-4,818.60-1,480.20

Finding the Fourth Proportional to 3,212.52, 4,818.60 and 1,480.20

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Solution

The fourth proportional to 3,212.52, 4,818.60 and 1,480.20 is: 2,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.52 : 4,818.60 = 1,480.20 : x
  2. Step 2: Convert to fraction form
    3,212.52/4,818.60 = 1,480.20/x
  3. Step 3: Cross multiply
    3,212.52x = 4,818.60 × 1,480.20
  4. Step 4: Simplify right side
    3,212.52x = 7,132,491.72
  5. Step 5: Solve for x
    x = 7,132,491.72/3,212.52
  6. Step 6: Final answer
    x = 2,220.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.