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Finding the Fourth Proportional to 2,655.90, 3,665.79 and 1,759.86

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Solution

The fourth proportional to 2,655.90, 3,665.79 and 1,759.86 is: 2,429.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.90 : 3,665.79 = 1,759.86 : x
  2. Step 2: Convert to fraction form
    2,655.90/3,665.79 = 1,759.86/x
  3. Step 3: Cross multiply
    2,655.90x = 3,665.79 × 1,759.86
  4. Step 4: Simplify right side
    2,655.90x = 6,451,277.19
  5. Step 5: Solve for x
    x = 6,451,277.19/2,655.90
  6. Step 6: Final answer
    x = 2,429.04

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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.