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Finding the Fourth Proportional to 2,010.90, 2,775.18 and 1,126.76

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Solution

The fourth proportional to 2,010.90, 2,775.18 and 1,126.76 is: 1,555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.90 : 2,775.18 = 1,126.76 : x
  2. Step 2: Convert to fraction form
    2,010.90/2,775.18 = 1,126.76/x
  3. Step 3: Cross multiply
    2,010.90x = 2,775.18 × 1,126.76
  4. Step 4: Simplify right side
    2,010.90x = 3,126,947.94
  5. Step 5: Solve for x
    x = 3,126,947.94/2,010.90
  6. Step 6: Final answer
    x = 1,555.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.