Home / 3,439.18-5,153.37-2,661.12

Finding the Fourth Proportional to 3,439.18, 5,153.37 and 2,661.12

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Solution

The fourth proportional to 3,439.18, 5,153.37 and 2,661.12 is: 3,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.18 : 5,153.37 = 2,661.12 : x
  2. Step 2: Convert to fraction form
    3,439.18/5,153.37 = 2,661.12/x
  3. Step 3: Cross multiply
    3,439.18x = 5,153.37 × 2,661.12
  4. Step 4: Simplify right side
    3,439.18x = 13,713,735.97
  5. Step 5: Solve for x
    x = 13,713,735.97/3,439.18
  6. Step 6: Final answer
    x = 3,987.50

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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.