Home / 3,287.30-4,929.65-1,206.68

Finding the Fourth Proportional to 3,287.30, 4,929.65 and 1,206.68

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Solution

The fourth proportional to 3,287.30, 4,929.65 and 1,206.68 is: 1,809.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.30 : 4,929.65 = 1,206.68 : x
  2. Step 2: Convert to fraction form
    3,287.30/4,929.65 = 1,206.68/x
  3. Step 3: Cross multiply
    3,287.30x = 4,929.65 × 1,206.68
  4. Step 4: Simplify right side
    3,287.30x = 5,948,479.38
  5. Step 5: Solve for x
    x = 5,948,479.38/3,287.30
  6. Step 6: Final answer
    x = 1,809.54

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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.