Home / 3,871.36-5,350.08-3,439.36

Finding the Fourth Proportional to 3,871.36, 5,350.08 and 3,439.36

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Solution

The fourth proportional to 3,871.36, 5,350.08 and 3,439.36 is: 4,753.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.36 : 5,350.08 = 3,439.36 : x
  2. Step 2: Convert to fraction form
    3,871.36/5,350.08 = 3,439.36/x
  3. Step 3: Cross multiply
    3,871.36x = 5,350.08 × 3,439.36
  4. Step 4: Simplify right side
    3,871.36x = 18,400,851.15
  5. Step 5: Solve for x
    x = 18,400,851.15/3,871.36
  6. Step 6: Final answer
    x = 4,753.07

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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.