Home / 2,759.15-3,808.50-1,767.09

Finding the Fourth Proportional to 2,759.15, 3,808.50 and 1,767.09

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Solution

The fourth proportional to 2,759.15, 3,808.50 and 1,767.09 is: 2,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.15 : 3,808.50 = 1,767.09 : x
  2. Step 2: Convert to fraction form
    2,759.15/3,808.50 = 1,767.09/x
  3. Step 3: Cross multiply
    2,759.15x = 3,808.50 × 1,767.09
  4. Step 4: Simplify right side
    2,759.15x = 6,729,962.27
  5. Step 5: Solve for x
    x = 6,729,962.27/2,759.15
  6. Step 6: Final answer
    x = 2,439.15

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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.