Home / 3,988.90-5,976.39-2,600.02

Finding the Fourth Proportional to 3,988.90, 5,976.39 and 2,600.02

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Solution

The fourth proportional to 3,988.90, 5,976.39 and 2,600.02 is: 3,895.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.90 : 5,976.39 = 2,600.02 : x
  2. Step 2: Convert to fraction form
    3,988.90/5,976.39 = 2,600.02/x
  3. Step 3: Cross multiply
    3,988.90x = 5,976.39 × 2,600.02
  4. Step 4: Simplify right side
    3,988.90x = 15,538,733.53
  5. Step 5: Solve for x
    x = 15,538,733.53/3,988.90
  6. Step 6: Final answer
    x = 3,895.49

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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.