Home / 3,871.30-5,339.64-2,735.14

Finding the Fourth Proportional to 3,871.30, 5,339.64 and 2,735.14

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Solution

The fourth proportional to 3,871.30, 5,339.64 and 2,735.14 is: 3,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.30 : 5,339.64 = 2,735.14 : x
  2. Step 2: Convert to fraction form
    3,871.30/5,339.64 = 2,735.14/x
  3. Step 3: Cross multiply
    3,871.30x = 5,339.64 × 2,735.14
  4. Step 4: Simplify right side
    3,871.30x = 14,604,662.95
  5. Step 5: Solve for x
    x = 14,604,662.95/3,871.30
  6. Step 6: Final answer
    x = 3,772.55

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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.