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Finding the Fourth Proportional to 3,331, 5,007.30 and 3,090.52

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Solution

The fourth proportional to 3,331, 5,007.30 and 3,090.52 is: 4,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331 : 5,007.30 = 3,090.52 : x
  2. Step 2: Convert to fraction form
    3,331/5,007.30 = 3,090.52/x
  3. Step 3: Cross multiply
    3,331x = 5,007.30 × 3,090.52
  4. Step 4: Simplify right side
    3,331x = 15,475,160.80
  5. Step 5: Solve for x
    x = 15,475,160.80/3,331
  6. Step 6: Final answer
    x = 4,645.80

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1.5x scale

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.