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Finding the Fourth Proportional to 3,631.90, 4,999.74 and 3,258.76

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Solution

The fourth proportional to 3,631.90, 4,999.74 and 3,258.76 is: 4,486.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.90 : 4,999.74 = 3,258.76 : x
  2. Step 2: Convert to fraction form
    3,631.90/4,999.74 = 3,258.76/x
  3. Step 3: Cross multiply
    3,631.90x = 4,999.74 × 3,258.76
  4. Step 4: Simplify right side
    3,631.90x = 16,292,952.72
  5. Step 5: Solve for x
    x = 16,292,952.72/3,631.90
  6. Step 6: Final answer
    x = 4,486.07

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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.