Home / 3,849.11-5,774.21-1,215.71

Finding the Fourth Proportional to 3,849.11, 5,774.21 and 1,215.71

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Solution

The fourth proportional to 3,849.11, 5,774.21 and 1,215.71 is: 1,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.11 : 5,774.21 = 1,215.71 : x
  2. Step 2: Convert to fraction form
    3,849.11/5,774.21 = 1,215.71/x
  3. Step 3: Cross multiply
    3,849.11x = 5,774.21 × 1,215.71
  4. Step 4: Simplify right side
    3,849.11x = 7,019,729.89
  5. Step 5: Solve for x
    x = 7,019,729.89/3,849.11
  6. Step 6: Final answer
    x = 1,823.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.