Home / 1,956.28-2,929.92-1,088.68

Finding the Fourth Proportional to 1,956.28, 2,929.92 and 1,088.68

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Solution

The fourth proportional to 1,956.28, 2,929.92 and 1,088.68 is: 1,630.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.28 : 2,929.92 = 1,088.68 : x
  2. Step 2: Convert to fraction form
    1,956.28/2,929.92 = 1,088.68/x
  3. Step 3: Cross multiply
    1,956.28x = 2,929.92 × 1,088.68
  4. Step 4: Simplify right side
    1,956.28x = 3,189,745.31
  5. Step 5: Solve for x
    x = 3,189,745.31/1,956.28
  6. Step 6: Final answer
    x = 1,630.52

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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.