Home / 2,146.64-3,216.16-1,880.11

Finding the Fourth Proportional to 2,146.64, 3,216.16 and 1,880.11

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Solution

The fourth proportional to 2,146.64, 3,216.16 and 1,880.11 is: 2,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.64 : 3,216.16 = 1,880.11 : x
  2. Step 2: Convert to fraction form
    2,146.64/3,216.16 = 1,880.11/x
  3. Step 3: Cross multiply
    2,146.64x = 3,216.16 × 1,880.11
  4. Step 4: Simplify right side
    2,146.64x = 6,046,755.28
  5. Step 5: Solve for x
    x = 6,046,755.28/2,146.64
  6. Step 6: Final answer
    x = 2,816.85

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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.