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Finding the Fourth Proportional to 2,739.83, 3,781.35 and 1,561.01

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Solution

The fourth proportional to 2,739.83, 3,781.35 and 1,561.01 is: 2,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.83 : 3,781.35 = 1,561.01 : x
  2. Step 2: Convert to fraction form
    2,739.83/3,781.35 = 1,561.01/x
  3. Step 3: Cross multiply
    2,739.83x = 3,781.35 × 1,561.01
  4. Step 4: Simplify right side
    2,739.83x = 5,902,725.16
  5. Step 5: Solve for x
    x = 5,902,725.16/2,739.83
  6. Step 6: Final answer
    x = 2,154.41

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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.