Home / 3,369.78-5,050.53-1,520.37

Finding the Fourth Proportional to 3,369.78, 5,050.53 and 1,520.37

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Solution

The fourth proportional to 3,369.78, 5,050.53 and 1,520.37 is: 2,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.78 : 5,050.53 = 1,520.37 : x
  2. Step 2: Convert to fraction form
    3,369.78/5,050.53 = 1,520.37/x
  3. Step 3: Cross multiply
    3,369.78x = 5,050.53 × 1,520.37
  4. Step 4: Simplify right side
    3,369.78x = 7,678,674.30
  5. Step 5: Solve for x
    x = 7,678,674.30/3,369.78
  6. Step 6: Final answer
    x = 2,278.69

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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.