Home / 3,722.40-5,134.20-2,836.08

Finding the Fourth Proportional to 3,722.40, 5,134.20 and 2,836.08

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Solution

The fourth proportional to 3,722.40, 5,134.20 and 2,836.08 is: 3,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.40 : 5,134.20 = 2,836.08 : x
  2. Step 2: Convert to fraction form
    3,722.40/5,134.20 = 2,836.08/x
  3. Step 3: Cross multiply
    3,722.40x = 5,134.20 × 2,836.08
  4. Step 4: Simplify right side
    3,722.40x = 14,561,001.94
  5. Step 5: Solve for x
    x = 14,561,001.94/3,722.40
  6. Step 6: Final answer
    x = 3,911.72

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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.