Home / 3,898.44-5,382.09-2,646.18

Finding the Fourth Proportional to 3,898.44, 5,382.09 and 2,646.18

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Solution

The fourth proportional to 3,898.44, 5,382.09 and 2,646.18 is: 3,653.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.44 : 5,382.09 = 2,646.18 : x
  2. Step 2: Convert to fraction form
    3,898.44/5,382.09 = 2,646.18/x
  3. Step 3: Cross multiply
    3,898.44x = 5,382.09 × 2,646.18
  4. Step 4: Simplify right side
    3,898.44x = 14,241,978.92
  5. Step 5: Solve for x
    x = 14,241,978.92/3,898.44
  6. Step 6: Final answer
    x = 3,653.25

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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.