Home / 2,986.34-4,121.48-2,239.04

Finding the Fourth Proportional to 2,986.34, 4,121.48 and 2,239.04

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Solution

The fourth proportional to 2,986.34, 4,121.48 and 2,239.04 is: 3,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.34 : 4,121.48 = 2,239.04 : x
  2. Step 2: Convert to fraction form
    2,986.34/4,121.48 = 2,239.04/x
  3. Step 3: Cross multiply
    2,986.34x = 4,121.48 × 2,239.04
  4. Step 4: Simplify right side
    2,986.34x = 9,228,174.48
  5. Step 5: Solve for x
    x = 9,228,174.48/2,986.34
  6. Step 6: Final answer
    x = 3,090.13

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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.