Home / 2,719.23-4,079.37-1,159.21

Finding the Fourth Proportional to 2,719.23, 4,079.37 and 1,159.21

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Solution

The fourth proportional to 2,719.23, 4,079.37 and 1,159.21 is: 1,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.23 : 4,079.37 = 1,159.21 : x
  2. Step 2: Convert to fraction form
    2,719.23/4,079.37 = 1,159.21/x
  3. Step 3: Cross multiply
    2,719.23x = 4,079.37 × 1,159.21
  4. Step 4: Simplify right side
    2,719.23x = 4,728,826.10
  5. Step 5: Solve for x
    x = 4,728,826.10/2,719.23
  6. Step 6: Final answer
    x = 1,739.03

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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.