Home / 1,941.52-2,912.28-1,559.20

Finding the Fourth Proportional to 1,941.52, 2,912.28 and 1,559.20

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Solution

The fourth proportional to 1,941.52, 2,912.28 and 1,559.20 is: 2,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.52 : 2,912.28 = 1,559.20 : x
  2. Step 2: Convert to fraction form
    1,941.52/2,912.28 = 1,559.20/x
  3. Step 3: Cross multiply
    1,941.52x = 2,912.28 × 1,559.20
  4. Step 4: Simplify right side
    1,941.52x = 4,540,826.98
  5. Step 5: Solve for x
    x = 4,540,826.98/1,941.52
  6. Step 6: Final answer
    x = 2,338.80

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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.