Home / 5,038.80-7,558.56-1,340.88

Finding the Fourth Proportional to 5,038.80, 7,558.56 and 1,340.88

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Solution

The fourth proportional to 5,038.80, 7,558.56 and 1,340.88 is: 2,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.80 : 7,558.56 = 1,340.88 : x
  2. Step 2: Convert to fraction form
    5,038.80/7,558.56 = 1,340.88/x
  3. Step 3: Cross multiply
    5,038.80x = 7,558.56 × 1,340.88
  4. Step 4: Simplify right side
    5,038.80x = 10,135,121.93
  5. Step 5: Solve for x
    x = 10,135,121.93/5,038.80
  6. Step 6: Final answer
    x = 2,011.42

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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.