Home / 1,695.67-2,340.21-949.66

Finding the Fourth Proportional to 1,695.67, 2,340.21 and 949.66

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Solution

The fourth proportional to 1,695.67, 2,340.21 and 949.66 is: 1,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.67 : 2,340.21 = 949.66 : x
  2. Step 2: Convert to fraction form
    1,695.67/2,340.21 = 949.66/x
  3. Step 3: Cross multiply
    1,695.67x = 2,340.21 × 949.66
  4. Step 4: Simplify right side
    1,695.67x = 2,222,403.83
  5. Step 5: Solve for x
    x = 2,222,403.83/1,695.67
  6. Step 6: Final answer
    x = 1,310.63

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1.5x scale

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.