Home / 3,116.64-4,644.96-2,961.12

Finding the Fourth Proportional to 3,116.64, 4,644.96 and 2,961.12

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Solution

The fourth proportional to 3,116.64, 4,644.96 and 2,961.12 is: 4,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.64 : 4,644.96 = 2,961.12 : x
  2. Step 2: Convert to fraction form
    3,116.64/4,644.96 = 2,961.12/x
  3. Step 3: Cross multiply
    3,116.64x = 4,644.96 × 2,961.12
  4. Step 4: Simplify right side
    3,116.64x = 13,754,283.96
  5. Step 5: Solve for x
    x = 13,754,283.96/3,116.64
  6. Step 6: Final answer
    x = 4,413.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.