Home / 7,408.78-11,114.61-2,214.70

Finding the Fourth Proportional to 7,408.78, 11,114.61 and 2,214.70

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Solution

The fourth proportional to 7,408.78, 11,114.61 and 2,214.70 is: 3,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.78 : 11,114.61 = 2,214.70 : x
  2. Step 2: Convert to fraction form
    7,408.78/11,114.61 = 2,214.70/x
  3. Step 3: Cross multiply
    7,408.78x = 11,114.61 × 2,214.70
  4. Step 4: Simplify right side
    7,408.78x = 24,615,526.77
  5. Step 5: Solve for x
    x = 24,615,526.77/7,408.78
  6. Step 6: Final answer
    x = 3,322.48

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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.