Home / 2,863.28-3,949.92-1,802.34

Finding the Fourth Proportional to 2,863.28, 3,949.92 and 1,802.34

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Solution

The fourth proportional to 2,863.28, 3,949.92 and 1,802.34 is: 2,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.28 : 3,949.92 = 1,802.34 : x
  2. Step 2: Convert to fraction form
    2,863.28/3,949.92 = 1,802.34/x
  3. Step 3: Cross multiply
    2,863.28x = 3,949.92 × 1,802.34
  4. Step 4: Simplify right side
    2,863.28x = 7,119,098.81
  5. Step 5: Solve for x
    x = 7,119,098.81/2,863.28
  6. Step 6: Final answer
    x = 2,486.34

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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.