Home / 5,408.07-8,118.18-4,190.17

Finding the Fourth Proportional to 5,408.07, 8,118.18 and 4,190.17

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Solution

The fourth proportional to 5,408.07, 8,118.18 and 4,190.17 is: 6,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.07 : 8,118.18 = 4,190.17 : x
  2. Step 2: Convert to fraction form
    5,408.07/8,118.18 = 4,190.17/x
  3. Step 3: Cross multiply
    5,408.07x = 8,118.18 × 4,190.17
  4. Step 4: Simplify right side
    5,408.07x = 34,016,513.70
  5. Step 5: Solve for x
    x = 34,016,513.70/5,408.07
  6. Step 6: Final answer
    x = 6,289.95

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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.