Home / 2,912.40-4,368.51-1,180.98

Finding the Fourth Proportional to 2,912.40, 4,368.51 and 1,180.98

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Solution

The fourth proportional to 2,912.40, 4,368.51 and 1,180.98 is: 1,771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.40 : 4,368.51 = 1,180.98 : x
  2. Step 2: Convert to fraction form
    2,912.40/4,368.51 = 1,180.98/x
  3. Step 3: Cross multiply
    2,912.40x = 4,368.51 × 1,180.98
  4. Step 4: Simplify right side
    2,912.40x = 5,159,122.94
  5. Step 5: Solve for x
    x = 5,159,122.94/2,912.40
  6. Step 6: Final answer
    x = 1,771.43

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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.