Home / 2,116.92-2,914.74-1,742.70

Finding the Fourth Proportional to 2,116.92, 2,914.74 and 1,742.70

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Solution

The fourth proportional to 2,116.92, 2,914.74 and 1,742.70 is: 2,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.92 : 2,914.74 = 1,742.70 : x
  2. Step 2: Convert to fraction form
    2,116.92/2,914.74 = 1,742.70/x
  3. Step 3: Cross multiply
    2,116.92x = 2,914.74 × 1,742.70
  4. Step 4: Simplify right side
    2,116.92x = 5,079,517.40
  5. Step 5: Solve for x
    x = 5,079,517.40/2,116.92
  6. Step 6: Final answer
    x = 2,399.48

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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.