Home / 3,208.84-4,811.25-1,258.78

Finding the Fourth Proportional to 3,208.84, 4,811.25 and 1,258.78

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Solution

The fourth proportional to 3,208.84, 4,811.25 and 1,258.78 is: 1,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.84 : 4,811.25 = 1,258.78 : x
  2. Step 2: Convert to fraction form
    3,208.84/4,811.25 = 1,258.78/x
  3. Step 3: Cross multiply
    3,208.84x = 4,811.25 × 1,258.78
  4. Step 4: Simplify right side
    3,208.84x = 6,056,305.28
  5. Step 5: Solve for x
    x = 6,056,305.28/3,208.84
  6. Step 6: Final answer
    x = 1,887.38

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1.5x scale

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.