Home / 5,135.32-7,087.10-3,874.16

Finding the Fourth Proportional to 5,135.32, 7,087.10 and 3,874.16

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Solution

The fourth proportional to 5,135.32, 7,087.10 and 3,874.16 is: 5,346.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.32 : 7,087.10 = 3,874.16 : x
  2. Step 2: Convert to fraction form
    5,135.32/7,087.10 = 3,874.16/x
  3. Step 3: Cross multiply
    5,135.32x = 7,087.10 × 3,874.16
  4. Step 4: Simplify right side
    5,135.32x = 27,456,559.34
  5. Step 5: Solve for x
    x = 27,456,559.34/5,135.32
  6. Step 6: Final answer
    x = 5,346.61

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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.