Home / 5,165.35-7,131.12-3,402.07

Finding the Fourth Proportional to 5,165.35, 7,131.12 and 3,402.07

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Solution

The fourth proportional to 5,165.35, 7,131.12 and 3,402.07 is: 4,696.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.35 : 7,131.12 = 3,402.07 : x
  2. Step 2: Convert to fraction form
    5,165.35/7,131.12 = 3,402.07/x
  3. Step 3: Cross multiply
    5,165.35x = 7,131.12 × 3,402.07
  4. Step 4: Simplify right side
    5,165.35x = 24,260,569.42
  5. Step 5: Solve for x
    x = 24,260,569.42/5,165.35
  6. Step 6: Final answer
    x = 4,696.79

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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.