Home / 1,816.14-2,507.28-1,249.80

Finding the Fourth Proportional to 1,816.14, 2,507.28 and 1,249.80

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Solution

The fourth proportional to 1,816.14, 2,507.28 and 1,249.80 is: 1,725.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.14 : 2,507.28 = 1,249.80 : x
  2. Step 2: Convert to fraction form
    1,816.14/2,507.28 = 1,249.80/x
  3. Step 3: Cross multiply
    1,816.14x = 2,507.28 × 1,249.80
  4. Step 4: Simplify right side
    1,816.14x = 3,133,598.54
  5. Step 5: Solve for x
    x = 3,133,598.54/1,816.14
  6. Step 6: Final answer
    x = 1,725.42

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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.