Home / 2,174.19-3,261.88-941.78

Finding the Fourth Proportional to 2,174.19, 3,261.88 and 941.78

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Solution

The fourth proportional to 2,174.19, 3,261.88 and 941.78 is: 1,412.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.19 : 3,261.88 = 941.78 : x
  2. Step 2: Convert to fraction form
    2,174.19/3,261.88 = 941.78/x
  3. Step 3: Cross multiply
    2,174.19x = 3,261.88 × 941.78
  4. Step 4: Simplify right side
    2,174.19x = 3,071,959.69
  5. Step 5: Solve for x
    x = 3,071,959.69/2,174.19
  6. Step 6: Final answer
    x = 1,412.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.