Home / 3,275.31-4,515.15-2,487.99

Finding the Fourth Proportional to 3,275.31, 4,515.15 and 2,487.99

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Solution

The fourth proportional to 3,275.31, 4,515.15 and 2,487.99 is: 3,429.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.31 : 4,515.15 = 2,487.99 : x
  2. Step 2: Convert to fraction form
    3,275.31/4,515.15 = 2,487.99/x
  3. Step 3: Cross multiply
    3,275.31x = 4,515.15 × 2,487.99
  4. Step 4: Simplify right side
    3,275.31x = 11,233,648.05
  5. Step 5: Solve for x
    x = 11,233,648.05/3,275.31
  6. Step 6: Final answer
    x = 3,429.80

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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.