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Finding the Fourth Proportional to 3,606.40, 4,976.40 and 2,013.13

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Solution

The fourth proportional to 3,606.40, 4,976.40 and 2,013.13 is: 2,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.40 : 4,976.40 = 2,013.13 : x
  2. Step 2: Convert to fraction form
    3,606.40/4,976.40 = 2,013.13/x
  3. Step 3: Cross multiply
    3,606.40x = 4,976.40 × 2,013.13
  4. Step 4: Simplify right side
    3,606.40x = 10,018,140.13
  5. Step 5: Solve for x
    x = 10,018,140.13/3,606.40
  6. Step 6: Final answer
    x = 2,777.88

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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.