Home / 2,174.04-3,000.16-1,289.89

Finding the Fourth Proportional to 2,174.04, 3,000.16 and 1,289.89

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Solution

The fourth proportional to 2,174.04, 3,000.16 and 1,289.89 is: 1,780.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.04 : 3,000.16 = 1,289.89 : x
  2. Step 2: Convert to fraction form
    2,174.04/3,000.16 = 1,289.89/x
  3. Step 3: Cross multiply
    2,174.04x = 3,000.16 × 1,289.89
  4. Step 4: Simplify right side
    2,174.04x = 3,869,876.38
  5. Step 5: Solve for x
    x = 3,869,876.38/2,174.04
  6. Step 6: Final answer
    x = 1,780.04

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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.