Home / 2,174.94-3,001.88-1,388.85

Finding the Fourth Proportional to 2,174.94, 3,001.88 and 1,388.85

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Solution

The fourth proportional to 2,174.94, 3,001.88 and 1,388.85 is: 1,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.94 : 3,001.88 = 1,388.85 : x
  2. Step 2: Convert to fraction form
    2,174.94/3,001.88 = 1,388.85/x
  3. Step 3: Cross multiply
    2,174.94x = 3,001.88 × 1,388.85
  4. Step 4: Simplify right side
    2,174.94x = 4,169,154.09
  5. Step 5: Solve for x
    x = 4,169,154.09/2,174.94
  6. Step 6: Final answer
    x = 1,916.91

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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.