Home / 2,759.66-3,808.31-1,641.45

Finding the Fourth Proportional to 2,759.66, 3,808.31 and 1,641.45

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Solution

The fourth proportional to 2,759.66, 3,808.31 and 1,641.45 is: 2,265.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.66 : 3,808.31 = 1,641.45 : x
  2. Step 2: Convert to fraction form
    2,759.66/3,808.31 = 1,641.45/x
  3. Step 3: Cross multiply
    2,759.66x = 3,808.31 × 1,641.45
  4. Step 4: Simplify right side
    2,759.66x = 6,251,150.45
  5. Step 5: Solve for x
    x = 6,251,150.45/2,759.66
  6. Step 6: Final answer
    x = 2,265.19

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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.