Home / 2,107.65-3,158.91-1,491.53

Finding the Fourth Proportional to 2,107.65, 3,158.91 and 1,491.53

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Solution

The fourth proportional to 2,107.65, 3,158.91 and 1,491.53 is: 2,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.65 : 3,158.91 = 1,491.53 : x
  2. Step 2: Convert to fraction form
    2,107.65/3,158.91 = 1,491.53/x
  3. Step 3: Cross multiply
    2,107.65x = 3,158.91 × 1,491.53
  4. Step 4: Simplify right side
    2,107.65x = 4,711,593.24
  5. Step 5: Solve for x
    x = 4,711,593.24/2,107.65
  6. Step 6: Final answer
    x = 2,235.47

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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.