Home / 2,891.16-4,338.36-1,161

Finding the Fourth Proportional to 2,891.16, 4,338.36 and 1,161

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Solution

The fourth proportional to 2,891.16, 4,338.36 and 1,161 is: 1,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.16 : 4,338.36 = 1,161 : x
  2. Step 2: Convert to fraction form
    2,891.16/4,338.36 = 1,161/x
  3. Step 3: Cross multiply
    2,891.16x = 4,338.36 × 1,161
  4. Step 4: Simplify right side
    2,891.16x = 5,036,835.96
  5. Step 5: Solve for x
    x = 5,036,835.96/2,891.16
  6. Step 6: Final answer
    x = 1,742.15

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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.