Home / 3,615.13-4,989.48-2,729.39

Finding the Fourth Proportional to 3,615.13, 4,989.48 and 2,729.39

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Solution

The fourth proportional to 3,615.13, 4,989.48 and 2,729.39 is: 3,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.13 : 4,989.48 = 2,729.39 : x
  2. Step 2: Convert to fraction form
    3,615.13/4,989.48 = 2,729.39/x
  3. Step 3: Cross multiply
    3,615.13x = 4,989.48 × 2,729.39
  4. Step 4: Simplify right side
    3,615.13x = 13,618,236.82
  5. Step 5: Solve for x
    x = 13,618,236.82/3,615.13
  6. Step 6: Final answer
    x = 3,767.02

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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.