Home / 3,744.67-5,615.05-1,663.78

Finding the Fourth Proportional to 3,744.67, 5,615.05 and 1,663.78

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Solution

The fourth proportional to 3,744.67, 5,615.05 and 1,663.78 is: 2,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.67 : 5,615.05 = 1,663.78 : x
  2. Step 2: Convert to fraction form
    3,744.67/5,615.05 = 1,663.78/x
  3. Step 3: Cross multiply
    3,744.67x = 5,615.05 × 1,663.78
  4. Step 4: Simplify right side
    3,744.67x = 9,342,207.89
  5. Step 5: Solve for x
    x = 9,342,207.89/3,744.67
  6. Step 6: Final answer
    x = 2,494.80

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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.