Home / 3,421.81-4,722.11-1,849.91

Finding the Fourth Proportional to 3,421.81, 4,722.11 and 1,849.91

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Solution

The fourth proportional to 3,421.81, 4,722.11 and 1,849.91 is: 2,552.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.81 : 4,722.11 = 1,849.91 : x
  2. Step 2: Convert to fraction form
    3,421.81/4,722.11 = 1,849.91/x
  3. Step 3: Cross multiply
    3,421.81x = 4,722.11 × 1,849.91
  4. Step 4: Simplify right side
    3,421.81x = 8,735,469.26
  5. Step 5: Solve for x
    x = 8,735,469.26/3,421.81
  6. Step 6: Final answer
    x = 2,552.88

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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.