Home / 7,837.21-11,761.50-2,907.55

Finding the Fourth Proportional to 7,837.21, 11,761.50 and 2,907.55

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Solution

The fourth proportional to 7,837.21, 11,761.50 and 2,907.55 is: 4,363.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.21 : 11,761.50 = 2,907.55 : x
  2. Step 2: Convert to fraction form
    7,837.21/11,761.50 = 2,907.55/x
  3. Step 3: Cross multiply
    7,837.21x = 11,761.50 × 2,907.55
  4. Step 4: Simplify right side
    7,837.21x = 34,197,149.33
  5. Step 5: Solve for x
    x = 34,197,149.33/7,837.21
  6. Step 6: Final answer
    x = 4,363.43

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1.5x scale

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.