Home / 5,170.24-7,134.99-2,812.39

Finding the Fourth Proportional to 5,170.24, 7,134.99 and 2,812.39

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Solution

The fourth proportional to 5,170.24, 7,134.99 and 2,812.39 is: 3,881.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.24 : 7,134.99 = 2,812.39 : x
  2. Step 2: Convert to fraction form
    5,170.24/7,134.99 = 2,812.39/x
  3. Step 3: Cross multiply
    5,170.24x = 7,134.99 × 2,812.39
  4. Step 4: Simplify right side
    5,170.24x = 20,066,365.61
  5. Step 5: Solve for x
    x = 20,066,365.61/5,170.24
  6. Step 6: Final answer
    x = 3,881.13

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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.