Home / 7,837.76-11,758.20-2,645.12

Finding the Fourth Proportional to 7,837.76, 11,758.20 and 2,645.12

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Solution

The fourth proportional to 7,837.76, 11,758.20 and 2,645.12 is: 3,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.76 : 11,758.20 = 2,645.12 : x
  2. Step 2: Convert to fraction form
    7,837.76/11,758.20 = 2,645.12/x
  3. Step 3: Cross multiply
    7,837.76x = 11,758.20 × 2,645.12
  4. Step 4: Simplify right side
    7,837.76x = 31,101,849.98
  5. Step 5: Solve for x
    x = 31,101,849.98/7,837.76
  6. Step 6: Final answer
    x = 3,968.21

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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.