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Finding the Fourth Proportional to 2,027.49, 2,798.12 and 1,143.48

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Solution

The fourth proportional to 2,027.49, 2,798.12 and 1,143.48 is: 1,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.49 : 2,798.12 = 1,143.48 : x
  2. Step 2: Convert to fraction form
    2,027.49/2,798.12 = 1,143.48/x
  3. Step 3: Cross multiply
    2,027.49x = 2,798.12 × 1,143.48
  4. Step 4: Simplify right side
    2,027.49x = 3,199,588.54
  5. Step 5: Solve for x
    x = 3,199,588.54/2,027.49
  6. Step 6: Final answer
    x = 1,578.10

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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.