Home / 5,480.66-8,221.43-1,585.14

Finding the Fourth Proportional to 5,480.66, 8,221.43 and 1,585.14

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Solution

The fourth proportional to 5,480.66, 8,221.43 and 1,585.14 is: 2,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.66 : 8,221.43 = 1,585.14 : x
  2. Step 2: Convert to fraction form
    5,480.66/8,221.43 = 1,585.14/x
  3. Step 3: Cross multiply
    5,480.66x = 8,221.43 × 1,585.14
  4. Step 4: Simplify right side
    5,480.66x = 13,032,117.55
  5. Step 5: Solve for x
    x = 13,032,117.55/5,480.66
  6. Step 6: Final answer
    x = 2,377.84

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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.