Home / 7,408.03-10,221.02-4,422.78

Finding the Fourth Proportional to 7,408.03, 10,221.02 and 4,422.78

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Solution

The fourth proportional to 7,408.03, 10,221.02 and 4,422.78 is: 6,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.03 : 10,221.02 = 4,422.78 : x
  2. Step 2: Convert to fraction form
    7,408.03/10,221.02 = 4,422.78/x
  3. Step 3: Cross multiply
    7,408.03x = 10,221.02 × 4,422.78
  4. Step 4: Simplify right side
    7,408.03x = 45,205,249.62
  5. Step 5: Solve for x
    x = 45,205,249.62/7,408.03
  6. Step 6: Final answer
    x = 6,102.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.