Home / 3,172.44-4,752.53-1,781.55

Finding the Fourth Proportional to 3,172.44, 4,752.53 and 1,781.55

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Solution

The fourth proportional to 3,172.44, 4,752.53 and 1,781.55 is: 2,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.44 : 4,752.53 = 1,781.55 : x
  2. Step 2: Convert to fraction form
    3,172.44/4,752.53 = 1,781.55/x
  3. Step 3: Cross multiply
    3,172.44x = 4,752.53 × 1,781.55
  4. Step 4: Simplify right side
    3,172.44x = 8,466,886.16
  5. Step 5: Solve for x
    x = 8,466,886.16/3,172.44
  6. Step 6: Final answer
    x = 2,668.89

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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.