Home / 5,479.40-8,220.30-1,583.66

Finding the Fourth Proportional to 5,479.40, 8,220.30 and 1,583.66

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Solution

The fourth proportional to 5,479.40, 8,220.30 and 1,583.66 is: 2,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.40 : 8,220.30 = 1,583.66 : x
  2. Step 2: Convert to fraction form
    5,479.40/8,220.30 = 1,583.66/x
  3. Step 3: Cross multiply
    5,479.40x = 8,220.30 × 1,583.66
  4. Step 4: Simplify right side
    5,479.40x = 13,018,160.30
  5. Step 5: Solve for x
    x = 13,018,160.30/5,479.40
  6. Step 6: Final answer
    x = 2,375.84

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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.