Home / 3,479.64-5,219.88-1,531.62

Finding the Fourth Proportional to 3,479.64, 5,219.88 and 1,531.62

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Solution

The fourth proportional to 3,479.64, 5,219.88 and 1,531.62 is: 2,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.64 : 5,219.88 = 1,531.62 : x
  2. Step 2: Convert to fraction form
    3,479.64/5,219.88 = 1,531.62/x
  3. Step 3: Cross multiply
    3,479.64x = 5,219.88 × 1,531.62
  4. Step 4: Simplify right side
    3,479.64x = 7,994,872.61
  5. Step 5: Solve for x
    x = 7,994,872.61/3,479.64
  6. Step 6: Final answer
    x = 2,297.61

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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.