Home / 2,987.08-4,125.23-2,239.85

Finding the Fourth Proportional to 2,987.08, 4,125.23 and 2,239.85

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Solution

The fourth proportional to 2,987.08, 4,125.23 and 2,239.85 is: 3,093.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.08 : 4,125.23 = 2,239.85 : x
  2. Step 2: Convert to fraction form
    2,987.08/4,125.23 = 2,239.85/x
  3. Step 3: Cross multiply
    2,987.08x = 4,125.23 × 2,239.85
  4. Step 4: Simplify right side
    2,987.08x = 9,239,903.93
  5. Step 5: Solve for x
    x = 9,239,903.93/2,987.08
  6. Step 6: Final answer
    x = 3,093.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.