Home / 3,871.93-5,343.24-2,103.52

Finding the Fourth Proportional to 3,871.93, 5,343.24 and 2,103.52

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Solution

The fourth proportional to 3,871.93, 5,343.24 and 2,103.52 is: 2,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.93 : 5,343.24 = 2,103.52 : x
  2. Step 2: Convert to fraction form
    3,871.93/5,343.24 = 2,103.52/x
  3. Step 3: Cross multiply
    3,871.93x = 5,343.24 × 2,103.52
  4. Step 4: Simplify right side
    3,871.93x = 11,239,612.20
  5. Step 5: Solve for x
    x = 11,239,612.20/3,871.93
  6. Step 6: Final answer
    x = 2,902.84

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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.