Home / 3,657.50-5,049.15-2,859.42

Finding the Fourth Proportional to 3,657.50, 5,049.15 and 2,859.42

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Solution

The fourth proportional to 3,657.50, 5,049.15 and 2,859.42 is: 3,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.50 : 5,049.15 = 2,859.42 : x
  2. Step 2: Convert to fraction form
    3,657.50/5,049.15 = 2,859.42/x
  3. Step 3: Cross multiply
    3,657.50x = 5,049.15 × 2,859.42
  4. Step 4: Simplify right side
    3,657.50x = 14,437,628.05
  5. Step 5: Solve for x
    x = 14,437,628.05/3,657.50
  6. Step 6: Final answer
    x = 3,947.40

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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.