Home / 2,579.70-3,866.38-1,191.16

Finding the Fourth Proportional to 2,579.70, 3,866.38 and 1,191.16

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Solution

The fourth proportional to 2,579.70, 3,866.38 and 1,191.16 is: 1,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.70 : 3,866.38 = 1,191.16 : x
  2. Step 2: Convert to fraction form
    2,579.70/3,866.38 = 1,191.16/x
  3. Step 3: Cross multiply
    2,579.70x = 3,866.38 × 1,191.16
  4. Step 4: Simplify right side
    2,579.70x = 4,605,477.20
  5. Step 5: Solve for x
    x = 4,605,477.20/2,579.70
  6. Step 6: Final answer
    x = 1,785.28

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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.