Home / 1,708.68-2,356.66-1,236.66

Finding the Fourth Proportional to 1,708.68, 2,356.66 and 1,236.66

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Solution

The fourth proportional to 1,708.68, 2,356.66 and 1,236.66 is: 1,705.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.68 : 2,356.66 = 1,236.66 : x
  2. Step 2: Convert to fraction form
    1,708.68/2,356.66 = 1,236.66/x
  3. Step 3: Cross multiply
    1,708.68x = 2,356.66 × 1,236.66
  4. Step 4: Simplify right side
    1,708.68x = 2,914,387.16
  5. Step 5: Solve for x
    x = 2,914,387.16/1,708.68
  6. Step 6: Final answer
    x = 1,705.64

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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.