Home / 2,079.14-2,869.81-1,229.18

Finding the Fourth Proportional to 2,079.14, 2,869.81 and 1,229.18

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Solution

The fourth proportional to 2,079.14, 2,869.81 and 1,229.18 is: 1,696.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.14 : 2,869.81 = 1,229.18 : x
  2. Step 2: Convert to fraction form
    2,079.14/2,869.81 = 1,229.18/x
  3. Step 3: Cross multiply
    2,079.14x = 2,869.81 × 1,229.18
  4. Step 4: Simplify right side
    2,079.14x = 3,527,492.56
  5. Step 5: Solve for x
    x = 3,527,492.56/2,079.14
  6. Step 6: Final answer
    x = 1,696.62

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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.