Home / 3,631.64-5,013.78-2,305.40

Finding the Fourth Proportional to 3,631.64, 5,013.78 and 2,305.40

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Solution

The fourth proportional to 3,631.64, 5,013.78 and 2,305.40 is: 3,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.64 : 5,013.78 = 2,305.40 : x
  2. Step 2: Convert to fraction form
    3,631.64/5,013.78 = 2,305.40/x
  3. Step 3: Cross multiply
    3,631.64x = 5,013.78 × 2,305.40
  4. Step 4: Simplify right side
    3,631.64x = 11,558,768.41
  5. Step 5: Solve for x
    x = 11,558,768.41/3,631.64
  6. Step 6: Final answer
    x = 3,182.80

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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.