Home / 3,258.38-4,887.98-1,310.15

Finding the Fourth Proportional to 3,258.38, 4,887.98 and 1,310.15

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Solution

The fourth proportional to 3,258.38, 4,887.98 and 1,310.15 is: 1,965.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.38 : 4,887.98 = 1,310.15 : x
  2. Step 2: Convert to fraction form
    3,258.38/4,887.98 = 1,310.15/x
  3. Step 3: Cross multiply
    3,258.38x = 4,887.98 × 1,310.15
  4. Step 4: Simplify right side
    3,258.38x = 6,403,987.00
  5. Step 5: Solve for x
    x = 6,403,987.00/3,258.38
  6. Step 6: Final answer
    x = 1,965.39

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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.