Home / 2,759.85-3,808.56-1,580.91

Finding the Fourth Proportional to 2,759.85, 3,808.56 and 1,580.91

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Solution

The fourth proportional to 2,759.85, 3,808.56 and 1,580.91 is: 2,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.85 : 3,808.56 = 1,580.91 : x
  2. Step 2: Convert to fraction form
    2,759.85/3,808.56 = 1,580.91/x
  3. Step 3: Cross multiply
    2,759.85x = 3,808.56 × 1,580.91
  4. Step 4: Simplify right side
    2,759.85x = 6,020,990.59
  5. Step 5: Solve for x
    x = 6,020,990.59/2,759.85
  6. Step 6: Final answer
    x = 2,181.64

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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.