Home / 7,108.85-10,664.55-3,408.50

Finding the Fourth Proportional to 7,108.85, 10,664.55 and 3,408.50

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Solution

The fourth proportional to 7,108.85, 10,664.55 and 3,408.50 is: 5,113.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.85 : 10,664.55 = 3,408.50 : x
  2. Step 2: Convert to fraction form
    7,108.85/10,664.55 = 3,408.50/x
  3. Step 3: Cross multiply
    7,108.85x = 10,664.55 × 3,408.50
  4. Step 4: Simplify right side
    7,108.85x = 36,350,065.35
  5. Step 5: Solve for x
    x = 36,350,065.35/7,108.85
  6. Step 6: Final answer
    x = 5,113.36

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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.