Home / 2,173.78-3,001.10-1,429.04

Finding the Fourth Proportional to 2,173.78, 3,001.10 and 1,429.04

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Solution

The fourth proportional to 2,173.78, 3,001.10 and 1,429.04 is: 1,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.78 : 3,001.10 = 1,429.04 : x
  2. Step 2: Convert to fraction form
    2,173.78/3,001.10 = 1,429.04/x
  3. Step 3: Cross multiply
    2,173.78x = 3,001.10 × 1,429.04
  4. Step 4: Simplify right side
    2,173.78x = 4,288,691.94
  5. Step 5: Solve for x
    x = 4,288,691.94/2,173.78
  6. Step 6: Final answer
    x = 1,972.92

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1.5x scale

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.