Home / 7,105.53-10,657.85-2,174.78

Finding the Fourth Proportional to 7,105.53, 10,657.85 and 2,174.78

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Solution

The fourth proportional to 7,105.53, 10,657.85 and 2,174.78 is: 3,262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.53 : 10,657.85 = 2,174.78 : x
  2. Step 2: Convert to fraction form
    7,105.53/10,657.85 = 2,174.78/x
  3. Step 3: Cross multiply
    7,105.53x = 10,657.85 × 2,174.78
  4. Step 4: Simplify right side
    7,105.53x = 23,178,479.02
  5. Step 5: Solve for x
    x = 23,178,479.02/7,105.53
  6. Step 6: Final answer
    x = 3,262.03

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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.