Home / 2,109.24-3,165.84-1,491.18

Finding the Fourth Proportional to 2,109.24, 3,165.84 and 1,491.18

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Solution

The fourth proportional to 2,109.24, 3,165.84 and 1,491.18 is: 2,238.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.24 : 3,165.84 = 1,491.18 : x
  2. Step 2: Convert to fraction form
    2,109.24/3,165.84 = 1,491.18/x
  3. Step 3: Cross multiply
    2,109.24x = 3,165.84 × 1,491.18
  4. Step 4: Simplify right side
    2,109.24x = 4,720,837.29
  5. Step 5: Solve for x
    x = 4,720,837.29/2,109.24
  6. Step 6: Final answer
    x = 2,238.17

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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.