Home / 7,408.78-11,110.85-2,477.27

Finding the Fourth Proportional to 7,408.78, 11,110.85 and 2,477.27

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Solution

The fourth proportional to 7,408.78, 11,110.85 and 2,477.27 is: 3,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.78 : 11,110.85 = 2,477.27 : x
  2. Step 2: Convert to fraction form
    7,408.78/11,110.85 = 2,477.27/x
  3. Step 3: Cross multiply
    7,408.78x = 11,110.85 × 2,477.27
  4. Step 4: Simplify right side
    7,408.78x = 27,524,575.38
  5. Step 5: Solve for x
    x = 27,524,575.38/7,408.78
  6. Step 6: Final answer
    x = 3,715.13

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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.