Home / 1,258.36-1,738.29-1,196.85

Finding the Fourth Proportional to 1,258.36, 1,738.29 and 1,196.85

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Solution

The fourth proportional to 1,258.36, 1,738.29 and 1,196.85 is: 1,653.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.36 : 1,738.29 = 1,196.85 : x
  2. Step 2: Convert to fraction form
    1,258.36/1,738.29 = 1,196.85/x
  3. Step 3: Cross multiply
    1,258.36x = 1,738.29 × 1,196.85
  4. Step 4: Simplify right side
    1,258.36x = 2,080,478.91
  5. Step 5: Solve for x
    x = 2,080,478.91/1,258.36
  6. Step 6: Final answer
    x = 1,653.32

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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.