Home / 1,869.75-2,581.36-1,662.17

Finding the Fourth Proportional to 1,869.75, 2,581.36 and 1,662.17

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Solution

The fourth proportional to 1,869.75, 2,581.36 and 1,662.17 is: 2,294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.75 : 2,581.36 = 1,662.17 : x
  2. Step 2: Convert to fraction form
    1,869.75/2,581.36 = 1,662.17/x
  3. Step 3: Cross multiply
    1,869.75x = 2,581.36 × 1,662.17
  4. Step 4: Simplify right side
    1,869.75x = 4,290,659.15
  5. Step 5: Solve for x
    x = 4,290,659.15/1,869.75
  6. Step 6: Final answer
    x = 2,294.78

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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.