Home / 1,696.84-2,339.40-1,224.34

Finding the Fourth Proportional to 1,696.84, 2,339.40 and 1,224.34

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Solution

The fourth proportional to 1,696.84, 2,339.40 and 1,224.34 is: 1,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.84 : 2,339.40 = 1,224.34 : x
  2. Step 2: Convert to fraction form
    1,696.84/2,339.40 = 1,224.34/x
  3. Step 3: Cross multiply
    1,696.84x = 2,339.40 × 1,224.34
  4. Step 4: Simplify right side
    1,696.84x = 2,864,221.00
  5. Step 5: Solve for x
    x = 2,864,221.00/1,696.84
  6. Step 6: Final answer
    x = 1,687.97

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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.