Home / 2,346.87-3,238.68-1,284.65

Finding the Fourth Proportional to 2,346.87, 3,238.68 and 1,284.65

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Solution

The fourth proportional to 2,346.87, 3,238.68 and 1,284.65 is: 1,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,346.87 : 3,238.68 = 1,284.65 : x
  2. Step 2: Convert to fraction form
    2,346.87/3,238.68 = 1,284.65/x
  3. Step 3: Cross multiply
    2,346.87x = 3,238.68 × 1,284.65
  4. Step 4: Simplify right side
    2,346.87x = 4,160,554.07
  5. Step 5: Solve for x
    x = 4,160,554.07/2,346.87
  6. Step 6: Final answer
    x = 1,772.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.