Home / 2,746.40-4,119.61-1,286.58

Finding the Fourth Proportional to 2,746.40, 4,119.61 and 1,286.58

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Solution

The fourth proportional to 2,746.40, 4,119.61 and 1,286.58 is: 1,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.40 : 4,119.61 = 1,286.58 : x
  2. Step 2: Convert to fraction form
    2,746.40/4,119.61 = 1,286.58/x
  3. Step 3: Cross multiply
    2,746.40x = 4,119.61 × 1,286.58
  4. Step 4: Simplify right side
    2,746.40x = 5,300,207.83
  5. Step 5: Solve for x
    x = 5,300,207.83/2,746.40
  6. Step 6: Final answer
    x = 1,929.87

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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.