Home / 5,181.60-7,150.56-3,191.36

Finding the Fourth Proportional to 5,181.60, 7,150.56 and 3,191.36

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Solution

The fourth proportional to 5,181.60, 7,150.56 and 3,191.36 is: 4,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.60 : 7,150.56 = 3,191.36 : x
  2. Step 2: Convert to fraction form
    5,181.60/7,150.56 = 3,191.36/x
  3. Step 3: Cross multiply
    5,181.60x = 7,150.56 × 3,191.36
  4. Step 4: Simplify right side
    5,181.60x = 22,820,011.16
  5. Step 5: Solve for x
    x = 22,820,011.16/5,181.60
  6. Step 6: Final answer
    x = 4,404.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.