Home / 2,789.83-4,181.14-1,557.91

Finding the Fourth Proportional to 2,789.83, 4,181.14 and 1,557.91

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Solution

The fourth proportional to 2,789.83, 4,181.14 and 1,557.91 is: 2,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.83 : 4,181.14 = 1,557.91 : x
  2. Step 2: Convert to fraction form
    2,789.83/4,181.14 = 1,557.91/x
  3. Step 3: Cross multiply
    2,789.83x = 4,181.14 × 1,557.91
  4. Step 4: Simplify right side
    2,789.83x = 6,513,839.82
  5. Step 5: Solve for x
    x = 6,513,839.82/2,789.83
  6. Step 6: Final answer
    x = 2,334.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.