Home / 2,752.05-4,128.68-1,191.99

Finding the Fourth Proportional to 2,752.05, 4,128.68 and 1,191.99

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Solution

The fourth proportional to 2,752.05, 4,128.68 and 1,191.99 is: 1,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.05 : 4,128.68 = 1,191.99 : x
  2. Step 2: Convert to fraction form
    2,752.05/4,128.68 = 1,191.99/x
  3. Step 3: Cross multiply
    2,752.05x = 4,128.68 × 1,191.99
  4. Step 4: Simplify right side
    2,752.05x = 4,921,345.27
  5. Step 5: Solve for x
    x = 4,921,345.27/2,752.05
  6. Step 6: Final answer
    x = 1,788.25

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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.