Home / 3,646.98-5,034.96-2,469.78

Finding the Fourth Proportional to 3,646.98, 5,034.96 and 2,469.78

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Solution

The fourth proportional to 3,646.98, 5,034.96 and 2,469.78 is: 3,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.98 : 5,034.96 = 2,469.78 : x
  2. Step 2: Convert to fraction form
    3,646.98/5,034.96 = 2,469.78/x
  3. Step 3: Cross multiply
    3,646.98x = 5,034.96 × 2,469.78
  4. Step 4: Simplify right side
    3,646.98x = 12,435,243.51
  5. Step 5: Solve for x
    x = 12,435,243.51/3,646.98
  6. Step 6: Final answer
    x = 3,409.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.