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Finding the Fourth Proportional to 3,335.78, 5,001.01 and 1,668.80

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Solution

The fourth proportional to 3,335.78, 5,001.01 and 1,668.80 is: 2,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.78 : 5,001.01 = 1,668.80 : x
  2. Step 2: Convert to fraction form
    3,335.78/5,001.01 = 1,668.80/x
  3. Step 3: Cross multiply
    3,335.78x = 5,001.01 × 1,668.80
  4. Step 4: Simplify right side
    3,335.78x = 8,345,693.82
  5. Step 5: Solve for x
    x = 8,345,693.82/3,335.78
  6. Step 6: Final answer
    x = 2,501.87

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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.