Home / 3,287.67-4,931.91-1,207.32

Finding the Fourth Proportional to 3,287.67, 4,931.91 and 1,207.32

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Solution

The fourth proportional to 3,287.67, 4,931.91 and 1,207.32 is: 1,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.67 : 4,931.91 = 1,207.32 : x
  2. Step 2: Convert to fraction form
    3,287.67/4,931.91 = 1,207.32/x
  3. Step 3: Cross multiply
    3,287.67x = 4,931.91 × 1,207.32
  4. Step 4: Simplify right side
    3,287.67x = 5,954,393.58
  5. Step 5: Solve for x
    x = 5,954,393.58/3,287.67
  6. Step 6: Final answer
    x = 1,811.13

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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.