Home / 2,197.90-3,293.91-1,209.23

Finding the Fourth Proportional to 2,197.90, 3,293.91 and 1,209.23

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Solution

The fourth proportional to 2,197.90, 3,293.91 and 1,209.23 is: 1,812.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.90 : 3,293.91 = 1,209.23 : x
  2. Step 2: Convert to fraction form
    2,197.90/3,293.91 = 1,209.23/x
  3. Step 3: Cross multiply
    2,197.90x = 3,293.91 × 1,209.23
  4. Step 4: Simplify right side
    2,197.90x = 3,983,094.79
  5. Step 5: Solve for x
    x = 3,983,094.79/2,197.90
  6. Step 6: Final answer
    x = 1,812.23

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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.