Home / 3,988.06-5,505.02-3,426.27

Finding the Fourth Proportional to 3,988.06, 5,505.02 and 3,426.27

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Solution

The fourth proportional to 3,988.06, 5,505.02 and 3,426.27 is: 4,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.06 : 5,505.02 = 3,426.27 : x
  2. Step 2: Convert to fraction form
    3,988.06/5,505.02 = 3,426.27/x
  3. Step 3: Cross multiply
    3,988.06x = 5,505.02 × 3,426.27
  4. Step 4: Simplify right side
    3,988.06x = 18,861,684.88
  5. Step 5: Solve for x
    x = 18,861,684.88/3,988.06
  6. Step 6: Final answer
    x = 4,729.54

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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.