Home / 3,310.47-4,569.48-2,131.55

Finding the Fourth Proportional to 3,310.47, 4,569.48 and 2,131.55

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Solution

The fourth proportional to 3,310.47, 4,569.48 and 2,131.55 is: 2,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.47 : 4,569.48 = 2,131.55 : x
  2. Step 2: Convert to fraction form
    3,310.47/4,569.48 = 2,131.55/x
  3. Step 3: Cross multiply
    3,310.47x = 4,569.48 × 2,131.55
  4. Step 4: Simplify right side
    3,310.47x = 9,740,052.25
  5. Step 5: Solve for x
    x = 9,740,052.25/3,310.47
  6. Step 6: Final answer
    x = 2,942.20

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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.