Home / 7,217.78-10,822.01-4,745.11

Finding the Fourth Proportional to 7,217.78, 10,822.01 and 4,745.11

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Solution

The fourth proportional to 7,217.78, 10,822.01 and 4,745.11 is: 7,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.78 : 10,822.01 = 4,745.11 : x
  2. Step 2: Convert to fraction form
    7,217.78/10,822.01 = 4,745.11/x
  3. Step 3: Cross multiply
    7,217.78x = 10,822.01 × 4,745.11
  4. Step 4: Simplify right side
    7,217.78x = 51,351,566.94
  5. Step 5: Solve for x
    x = 51,351,566.94/7,217.78
  6. Step 6: Final answer
    x = 7,114.59

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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.