Home / 5,479.56-8,219.50-1,781.96

Finding the Fourth Proportional to 5,479.56, 8,219.50 and 1,781.96

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Solution

The fourth proportional to 5,479.56, 8,219.50 and 1,781.96 is: 2,672.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.56 : 8,219.50 = 1,781.96 : x
  2. Step 2: Convert to fraction form
    5,479.56/8,219.50 = 1,781.96/x
  3. Step 3: Cross multiply
    5,479.56x = 8,219.50 × 1,781.96
  4. Step 4: Simplify right side
    5,479.56x = 14,646,820.22
  5. Step 5: Solve for x
    x = 14,646,820.22/5,479.56
  6. Step 6: Final answer
    x = 2,672.99

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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.