Home / 5,181.13-7,147.51-3,190.96

Finding the Fourth Proportional to 5,181.13, 7,147.51 and 3,190.96

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Solution

The fourth proportional to 5,181.13, 7,147.51 and 3,190.96 is: 4,402.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.13 : 7,147.51 = 3,190.96 : x
  2. Step 2: Convert to fraction form
    5,181.13/7,147.51 = 3,190.96/x
  3. Step 3: Cross multiply
    5,181.13x = 7,147.51 × 3,190.96
  4. Step 4: Simplify right side
    5,181.13x = 22,807,392.66
  5. Step 5: Solve for x
    x = 22,807,392.66/5,181.13
  6. Step 6: Final answer
    x = 4,402.01

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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.