Home / 3,871.36-5,347.92-3,084.48

Finding the Fourth Proportional to 3,871.36, 5,347.92 and 3,084.48

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Solution

The fourth proportional to 3,871.36, 5,347.92 and 3,084.48 is: 4,260.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.36 : 5,347.92 = 3,084.48 : x
  2. Step 2: Convert to fraction form
    3,871.36/5,347.92 = 3,084.48/x
  3. Step 3: Cross multiply
    3,871.36x = 5,347.92 × 3,084.48
  4. Step 4: Simplify right side
    3,871.36x = 16,495,552.28
  5. Step 5: Solve for x
    x = 16,495,552.28/3,871.36
  6. Step 6: Final answer
    x = 4,260.92

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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.