Home / 2,987.04-4,479.48-1,231.97

Finding the Fourth Proportional to 2,987.04, 4,479.48 and 1,231.97

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Solution

The fourth proportional to 2,987.04, 4,479.48 and 1,231.97 is: 1,847.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.04 : 4,479.48 = 1,231.97 : x
  2. Step 2: Convert to fraction form
    2,987.04/4,479.48 = 1,231.97/x
  3. Step 3: Cross multiply
    2,987.04x = 4,479.48 × 1,231.97
  4. Step 4: Simplify right side
    2,987.04x = 5,518,562.58
  5. Step 5: Solve for x
    x = 5,518,562.58/2,987.04
  6. Step 6: Final answer
    x = 1,847.50

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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.