Home / 3,531.14-4,871.96-2,782.78

Finding the Fourth Proportional to 3,531.14, 4,871.96 and 2,782.78

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Solution

The fourth proportional to 3,531.14, 4,871.96 and 2,782.78 is: 3,839.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.14 : 4,871.96 = 2,782.78 : x
  2. Step 2: Convert to fraction form
    3,531.14/4,871.96 = 2,782.78/x
  3. Step 3: Cross multiply
    3,531.14x = 4,871.96 × 2,782.78
  4. Step 4: Simplify right side
    3,531.14x = 13,557,592.85
  5. Step 5: Solve for x
    x = 13,557,592.85/3,531.14
  6. Step 6: Final answer
    x = 3,839.44

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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.