Home / 5,212.16-7,192.18-3,087.74

Finding the Fourth Proportional to 5,212.16, 7,192.18 and 3,087.74

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Solution

The fourth proportional to 5,212.16, 7,192.18 and 3,087.74 is: 4,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.16 : 7,192.18 = 3,087.74 : x
  2. Step 2: Convert to fraction form
    5,212.16/7,192.18 = 3,087.74/x
  3. Step 3: Cross multiply
    5,212.16x = 7,192.18 × 3,087.74
  4. Step 4: Simplify right side
    5,212.16x = 22,207,581.87
  5. Step 5: Solve for x
    x = 22,207,581.87/5,212.16
  6. Step 6: Final answer
    x = 4,260.73

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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.