Home / 1,258.23-1,738.02-1,049.09

Finding the Fourth Proportional to 1,258.23, 1,738.02 and 1,049.09

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Solution

The fourth proportional to 1,258.23, 1,738.02 and 1,049.09 is: 1,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.23 : 1,738.02 = 1,049.09 : x
  2. Step 2: Convert to fraction form
    1,258.23/1,738.02 = 1,049.09/x
  3. Step 3: Cross multiply
    1,258.23x = 1,738.02 × 1,049.09
  4. Step 4: Simplify right side
    1,258.23x = 1,823,339.40
  5. Step 5: Solve for x
    x = 1,823,339.40/1,258.23
  6. Step 6: Final answer
    x = 1,449.13

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Double scale
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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.