Home / 5,380.43-8,070.60-3,187.58

Finding the Fourth Proportional to 5,380.43, 8,070.60 and 3,187.58

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Solution

The fourth proportional to 5,380.43, 8,070.60 and 3,187.58 is: 4,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.43 : 8,070.60 = 3,187.58 : x
  2. Step 2: Convert to fraction form
    5,380.43/8,070.60 = 3,187.58/x
  3. Step 3: Cross multiply
    5,380.43x = 8,070.60 × 3,187.58
  4. Step 4: Simplify right side
    5,380.43x = 25,725,683.15
  5. Step 5: Solve for x
    x = 25,725,683.15/5,380.43
  6. Step 6: Final answer
    x = 4,781.34

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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.