Home / 7,717.21-11,576.34-3,820.57

Finding the Fourth Proportional to 7,717.21, 11,576.34 and 3,820.57

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Solution

The fourth proportional to 7,717.21, 11,576.34 and 3,820.57 is: 5,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.21 : 11,576.34 = 3,820.57 : x
  2. Step 2: Convert to fraction form
    7,717.21/11,576.34 = 3,820.57/x
  3. Step 3: Cross multiply
    7,717.21x = 11,576.34 × 3,820.57
  4. Step 4: Simplify right side
    7,717.21x = 44,228,217.31
  5. Step 5: Solve for x
    x = 44,228,217.31/7,717.21
  6. Step 6: Final answer
    x = 5,731.11

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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.