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Finding the Fourth Proportional to 2,759.81, 3,807.54 and 1,764.99

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Solution

The fourth proportional to 2,759.81, 3,807.54 and 1,764.99 is: 2,435.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.81 : 3,807.54 = 1,764.99 : x
  2. Step 2: Convert to fraction form
    2,759.81/3,807.54 = 1,764.99/x
  3. Step 3: Cross multiply
    2,759.81x = 3,807.54 × 1,764.99
  4. Step 4: Simplify right side
    2,759.81x = 6,720,270.02
  5. Step 5: Solve for x
    x = 6,720,270.02/2,759.81
  6. Step 6: Final answer
    x = 2,435.05

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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.