Home / 5,212.32-7,192.94-2,854.40

Finding the Fourth Proportional to 5,212.32, 7,192.94 and 2,854.40

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Solution

The fourth proportional to 5,212.32, 7,192.94 and 2,854.40 is: 3,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.32 : 7,192.94 = 2,854.40 : x
  2. Step 2: Convert to fraction form
    5,212.32/7,192.94 = 2,854.40/x
  3. Step 3: Cross multiply
    5,212.32x = 7,192.94 × 2,854.40
  4. Step 4: Simplify right side
    5,212.32x = 20,531,527.94
  5. Step 5: Solve for x
    x = 20,531,527.94/5,212.32
  6. Step 6: Final answer
    x = 3,939.04

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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.