Home / 2,788.10-4,182.68-1,057.94

Finding the Fourth Proportional to 2,788.10, 4,182.68 and 1,057.94

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Solution

The fourth proportional to 2,788.10, 4,182.68 and 1,057.94 is: 1,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.10 : 4,182.68 = 1,057.94 : x
  2. Step 2: Convert to fraction form
    2,788.10/4,182.68 = 1,057.94/x
  3. Step 3: Cross multiply
    2,788.10x = 4,182.68 × 1,057.94
  4. Step 4: Simplify right side
    2,788.10x = 4,425,006.21
  5. Step 5: Solve for x
    x = 4,425,006.21/2,788.10
  6. Step 6: Final answer
    x = 1,587.11

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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.