Home / 2,912.13-4,368.19-1,180.75

Finding the Fourth Proportional to 2,912.13, 4,368.19 and 1,180.75

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Solution

The fourth proportional to 2,912.13, 4,368.19 and 1,180.75 is: 1,771.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.13 : 4,368.19 = 1,180.75 : x
  2. Step 2: Convert to fraction form
    2,912.13/4,368.19 = 1,180.75/x
  3. Step 3: Cross multiply
    2,912.13x = 4,368.19 × 1,180.75
  4. Step 4: Simplify right side
    2,912.13x = 5,157,740.34
  5. Step 5: Solve for x
    x = 5,157,740.34/2,912.13
  6. Step 6: Final answer
    x = 1,771.12

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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.