Home / 7,437.89-11,149.72-2,756.64

Finding the Fourth Proportional to 7,437.89, 11,149.72 and 2,756.64

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Solution

The fourth proportional to 7,437.89, 11,149.72 and 2,756.64 is: 4,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,437.89 : 11,149.72 = 2,756.64 : x
  2. Step 2: Convert to fraction form
    7,437.89/11,149.72 = 2,756.64/x
  3. Step 3: Cross multiply
    7,437.89x = 11,149.72 × 2,756.64
  4. Step 4: Simplify right side
    7,437.89x = 30,735,764.14
  5. Step 5: Solve for x
    x = 30,735,764.14/7,437.89
  6. Step 6: Final answer
    x = 4,132.32

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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.