Home / 2,788.12-4,179.70-1,057.96

Finding the Fourth Proportional to 2,788.12, 4,179.70 and 1,057.96

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Solution

The fourth proportional to 2,788.12, 4,179.70 and 1,057.96 is: 1,586.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.12 : 4,179.70 = 1,057.96 : x
  2. Step 2: Convert to fraction form
    2,788.12/4,179.70 = 1,057.96/x
  3. Step 3: Cross multiply
    2,788.12x = 4,179.70 × 1,057.96
  4. Step 4: Simplify right side
    2,788.12x = 4,421,961.96
  5. Step 5: Solve for x
    x = 4,421,961.96/2,788.12
  6. Step 6: Final answer
    x = 1,586.00

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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.