Home / 2,645.36-3,968.66-1,258.00

Finding the Fourth Proportional to 2,645.36, 3,968.66 and 1,258.00

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Solution

The fourth proportional to 2,645.36, 3,968.66 and 1,258.00 is: 1,887.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.36 : 3,968.66 = 1,258.00 : x
  2. Step 2: Convert to fraction form
    2,645.36/3,968.66 = 1,258.00/x
  3. Step 3: Cross multiply
    2,645.36x = 3,968.66 × 1,258.00
  4. Step 4: Simplify right side
    2,645.36x = 4,992,567.50
  5. Step 5: Solve for x
    x = 4,992,567.50/2,645.36
  6. Step 6: Final answer
    x = 1,887.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.