Home / 3,816.25-5,266.47-2,489.19

Finding the Fourth Proportional to 3,816.25, 5,266.47 and 2,489.19

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Solution

The fourth proportional to 3,816.25, 5,266.47 and 2,489.19 is: 3,435.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.25 : 5,266.47 = 2,489.19 : x
  2. Step 2: Convert to fraction form
    3,816.25/5,266.47 = 2,489.19/x
  3. Step 3: Cross multiply
    3,816.25x = 5,266.47 × 2,489.19
  4. Step 4: Simplify right side
    3,816.25x = 13,109,218.13
  5. Step 5: Solve for x
    x = 13,109,218.13/3,816.25
  6. Step 6: Final answer
    x = 3,435.11

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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.