Home / 2,209.50-3,047.91-1,369.92

Finding the Fourth Proportional to 2,209.50, 3,047.91 and 1,369.92

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Solution

The fourth proportional to 2,209.50, 3,047.91 and 1,369.92 is: 1,889.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.50 : 3,047.91 = 1,369.92 : x
  2. Step 2: Convert to fraction form
    2,209.50/3,047.91 = 1,369.92/x
  3. Step 3: Cross multiply
    2,209.50x = 3,047.91 × 1,369.92
  4. Step 4: Simplify right side
    2,209.50x = 4,175,392.87
  5. Step 5: Solve for x
    x = 4,175,392.87/2,209.50
  6. Step 6: Final answer
    x = 1,889.75

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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.