Home / 2,826.71-4,239.20-1,954.81

Finding the Fourth Proportional to 2,826.71, 4,239.20 and 1,954.81

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Solution

The fourth proportional to 2,826.71, 4,239.20 and 1,954.81 is: 2,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.71 : 4,239.20 = 1,954.81 : x
  2. Step 2: Convert to fraction form
    2,826.71/4,239.20 = 1,954.81/x
  3. Step 3: Cross multiply
    2,826.71x = 4,239.20 × 1,954.81
  4. Step 4: Simplify right side
    2,826.71x = 8,286,836.26
  5. Step 5: Solve for x
    x = 8,286,836.26/2,826.71
  6. Step 6: Final answer
    x = 2,931.62

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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.