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Finding the Fourth Proportional to 2,010.98, 2,775.16 and 1,126.79

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Solution

The fourth proportional to 2,010.98, 2,775.16 and 1,126.79 is: 1,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.98 : 2,775.16 = 1,126.79 : x
  2. Step 2: Convert to fraction form
    2,010.98/2,775.16 = 1,126.79/x
  3. Step 3: Cross multiply
    2,010.98x = 2,775.16 × 1,126.79
  4. Step 4: Simplify right side
    2,010.98x = 3,127,026.66
  5. Step 5: Solve for x
    x = 3,127,026.66/2,010.98
  6. Step 6: Final answer
    x = 1,554.97

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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.