Home / 1,912.01-2,868.35-1,182.40

Finding the Fourth Proportional to 1,912.01, 2,868.35 and 1,182.40

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Solution

The fourth proportional to 1,912.01, 2,868.35 and 1,182.40 is: 1,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.01 : 2,868.35 = 1,182.40 : x
  2. Step 2: Convert to fraction form
    1,912.01/2,868.35 = 1,182.40/x
  3. Step 3: Cross multiply
    1,912.01x = 2,868.35 × 1,182.40
  4. Step 4: Simplify right side
    1,912.01x = 3,391,523.96
  5. Step 5: Solve for x
    x = 3,391,523.96/1,912.01
  6. Step 6: Final answer
    x = 1,773.80

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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.