Home / 5,638.88-7,781.65-3,282.59

Finding the Fourth Proportional to 5,638.88, 7,781.65 and 3,282.59

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Solution

The fourth proportional to 5,638.88, 7,781.65 and 3,282.59 is: 4,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.88 : 7,781.65 = 3,282.59 : x
  2. Step 2: Convert to fraction form
    5,638.88/7,781.65 = 3,282.59/x
  3. Step 3: Cross multiply
    5,638.88x = 7,781.65 × 3,282.59
  4. Step 4: Simplify right side
    5,638.88x = 25,543,919.36
  5. Step 5: Solve for x
    x = 25,543,919.36/5,638.88
  6. Step 6: Final answer
    x = 4,529.97

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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.