Home / 3,842.32-5,302.55-2,163.72

Finding the Fourth Proportional to 3,842.32, 5,302.55 and 2,163.72

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Solution

The fourth proportional to 3,842.32, 5,302.55 and 2,163.72 is: 2,986.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.32 : 5,302.55 = 2,163.72 : x
  2. Step 2: Convert to fraction form
    3,842.32/5,302.55 = 2,163.72/x
  3. Step 3: Cross multiply
    3,842.32x = 5,302.55 × 2,163.72
  4. Step 4: Simplify right side
    3,842.32x = 11,473,233.49
  5. Step 5: Solve for x
    x = 11,473,233.49/3,842.32
  6. Step 6: Final answer
    x = 2,986.02

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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.