Home / 3,543.40-4,891.62-2,217.84

Finding the Fourth Proportional to 3,543.40, 4,891.62 and 2,217.84

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Solution

The fourth proportional to 3,543.40, 4,891.62 and 2,217.84 is: 3,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.40 : 4,891.62 = 2,217.84 : x
  2. Step 2: Convert to fraction form
    3,543.40/4,891.62 = 2,217.84/x
  3. Step 3: Cross multiply
    3,543.40x = 4,891.62 × 2,217.84
  4. Step 4: Simplify right side
    3,543.40x = 10,848,830.50
  5. Step 5: Solve for x
    x = 10,848,830.50/3,543.40
  6. Step 6: Final answer
    x = 3,061.70

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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.