Home / 6,919.80-10,373.22-3,408.45

Finding the Fourth Proportional to 6,919.80, 10,373.22 and 3,408.45

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Solution

The fourth proportional to 6,919.80, 10,373.22 and 3,408.45 is: 5,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.80 : 10,373.22 = 3,408.45 : x
  2. Step 2: Convert to fraction form
    6,919.80/10,373.22 = 3,408.45/x
  3. Step 3: Cross multiply
    6,919.80x = 10,373.22 × 3,408.45
  4. Step 4: Simplify right side
    6,919.80x = 35,356,601.71
  5. Step 5: Solve for x
    x = 35,356,601.71/6,919.80
  6. Step 6: Final answer
    x = 5,109.48

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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.