Home / 8,219.70-12,322.80-3,543.30

Finding the Fourth Proportional to 8,219.70, 12,322.80 and 3,543.30

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Solution

The fourth proportional to 8,219.70, 12,322.80 and 3,543.30 is: 5,312.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.70 : 12,322.80 = 3,543.30 : x
  2. Step 2: Convert to fraction form
    8,219.70/12,322.80 = 3,543.30/x
  3. Step 3: Cross multiply
    8,219.70x = 12,322.80 × 3,543.30
  4. Step 4: Simplify right side
    8,219.70x = 43,663,377.24
  5. Step 5: Solve for x
    x = 43,663,377.24/8,219.70
  6. Step 6: Final answer
    x = 5,312.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.