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Finding the Fourth Proportional to 2,773.97, 3,828.08 and 1,515.05

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Solution

The fourth proportional to 2,773.97, 3,828.08 and 1,515.05 is: 2,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.97 : 3,828.08 = 1,515.05 : x
  2. Step 2: Convert to fraction form
    2,773.97/3,828.08 = 1,515.05/x
  3. Step 3: Cross multiply
    2,773.97x = 3,828.08 × 1,515.05
  4. Step 4: Simplify right side
    2,773.97x = 5,799,705.89
  5. Step 5: Solve for x
    x = 5,799,705.89/2,773.97
  6. Step 6: Final answer
    x = 2,090.76

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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.