Home / 1,695.70-2,339.97-949.65

Finding the Fourth Proportional to 1,695.70, 2,339.97 and 949.65

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Solution

The fourth proportional to 1,695.70, 2,339.97 and 949.65 is: 1,310.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.70 : 2,339.97 = 949.65 : x
  2. Step 2: Convert to fraction form
    1,695.70/2,339.97 = 949.65/x
  3. Step 3: Cross multiply
    1,695.70x = 2,339.97 × 949.65
  4. Step 4: Simplify right side
    1,695.70x = 2,222,145.52
  5. Step 5: Solve for x
    x = 2,222,145.52/1,695.70
  6. Step 6: Final answer
    x = 1,310.46

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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.