Home / 2,097.13-3,143.54-1,122.97

Finding the Fourth Proportional to 2,097.13, 3,143.54 and 1,122.97

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Solution

The fourth proportional to 2,097.13, 3,143.54 and 1,122.97 is: 1,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,097.13 : 3,143.54 = 1,122.97 : x
  2. Step 2: Convert to fraction form
    2,097.13/3,143.54 = 1,122.97/x
  3. Step 3: Cross multiply
    2,097.13x = 3,143.54 × 1,122.97
  4. Step 4: Simplify right side
    2,097.13x = 3,530,095.50
  5. Step 5: Solve for x
    x = 3,530,095.50/2,097.13
  6. Step 6: Final answer
    x = 1,683.30

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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.