Home / 3,833.20-5,288.28-2,782.96

Finding the Fourth Proportional to 3,833.20, 5,288.28 and 2,782.96

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Solution

The fourth proportional to 3,833.20, 5,288.28 and 2,782.96 is: 3,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.20 : 5,288.28 = 2,782.96 : x
  2. Step 2: Convert to fraction form
    3,833.20/5,288.28 = 2,782.96/x
  3. Step 3: Cross multiply
    3,833.20x = 5,288.28 × 2,782.96
  4. Step 4: Simplify right side
    3,833.20x = 14,717,071.71
  5. Step 5: Solve for x
    x = 14,717,071.71/3,833.20
  6. Step 6: Final answer
    x = 3,839.37

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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.