Home / 1,258.10-1,726.07-1,196.13

Finding the Fourth Proportional to 1,258.10, 1,726.07 and 1,196.13

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Solution

The fourth proportional to 1,258.10, 1,726.07 and 1,196.13 is: 1,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.10 : 1,726.07 = 1,196.13 : x
  2. Step 2: Convert to fraction form
    1,258.10/1,726.07 = 1,196.13/x
  3. Step 3: Cross multiply
    1,258.10x = 1,726.07 × 1,196.13
  4. Step 4: Simplify right side
    1,258.10x = 2,064,604.11
  5. Step 5: Solve for x
    x = 2,064,604.11/1,258.10
  6. Step 6: Final answer
    x = 1,641.05

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.