Home / 2,133.68-2,944.50-1,249.51

Finding the Fourth Proportional to 2,133.68, 2,944.50 and 1,249.51

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Solution

The fourth proportional to 2,133.68, 2,944.50 and 1,249.51 is: 1,724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.68 : 2,944.50 = 1,249.51 : x
  2. Step 2: Convert to fraction form
    2,133.68/2,944.50 = 1,249.51/x
  3. Step 3: Cross multiply
    2,133.68x = 2,944.50 × 1,249.51
  4. Step 4: Simplify right side
    2,133.68x = 3,679,182.20
  5. Step 5: Solve for x
    x = 3,679,182.20/2,133.68
  6. Step 6: Final answer
    x = 1,724.34

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Double scale
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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.