Home / 1,785.34-2,465.70-1,227.28

Finding the Fourth Proportional to 1,785.34, 2,465.70 and 1,227.28

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Solution

The fourth proportional to 1,785.34, 2,465.70 and 1,227.28 is: 1,694.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.34 : 2,465.70 = 1,227.28 : x
  2. Step 2: Convert to fraction form
    1,785.34/2,465.70 = 1,227.28/x
  3. Step 3: Cross multiply
    1,785.34x = 2,465.70 × 1,227.28
  4. Step 4: Simplify right side
    1,785.34x = 3,026,104.30
  5. Step 5: Solve for x
    x = 3,026,104.30/1,785.34
  6. Step 6: Final answer
    x = 1,694.97

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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.