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Finding the Fourth Proportional to 2,010.82, 2,775.16 and 1,224.87

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Solution

The fourth proportional to 2,010.82, 2,775.16 and 1,224.87 is: 1,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.82 : 2,775.16 = 1,224.87 : x
  2. Step 2: Convert to fraction form
    2,010.82/2,775.16 = 1,224.87/x
  3. Step 3: Cross multiply
    2,010.82x = 2,775.16 × 1,224.87
  4. Step 4: Simplify right side
    2,010.82x = 3,399,201.35
  5. Step 5: Solve for x
    x = 3,399,201.35/2,010.82
  6. Step 6: Final answer
    x = 1,690.45

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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.