Home / 3,292.80-4,543.61-2,115.46

Finding the Fourth Proportional to 3,292.80, 4,543.61 and 2,115.46

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Solution

The fourth proportional to 3,292.80, 4,543.61 and 2,115.46 is: 2,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292.80 : 4,543.61 = 2,115.46 : x
  2. Step 2: Convert to fraction form
    3,292.80/4,543.61 = 2,115.46/x
  3. Step 3: Cross multiply
    3,292.80x = 4,543.61 × 2,115.46
  4. Step 4: Simplify right side
    3,292.80x = 9,611,825.21
  5. Step 5: Solve for x
    x = 9,611,825.21/3,292.80
  6. Step 6: Final answer
    x = 2,919.04

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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.