Home / 3,410.26-5,115.40-1,561.98

Finding the Fourth Proportional to 3,410.26, 5,115.40 and 1,561.98

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Solution

The fourth proportional to 3,410.26, 5,115.40 and 1,561.98 is: 2,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.26 : 5,115.40 = 1,561.98 : x
  2. Step 2: Convert to fraction form
    3,410.26/5,115.40 = 1,561.98/x
  3. Step 3: Cross multiply
    3,410.26x = 5,115.40 × 1,561.98
  4. Step 4: Simplify right side
    3,410.26x = 7,990,152.49
  5. Step 5: Solve for x
    x = 7,990,152.49/3,410.26
  6. Step 6: Final answer
    x = 2,342.97

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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.