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Finding the Fourth Proportional to 1,822.02, 2,731 and 726.10

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Solution

The fourth proportional to 1,822.02, 2,731 and 726.10 is: 1,088.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.02 : 2,731 = 726.10 : x
  2. Step 2: Convert to fraction form
    1,822.02/2,731 = 726.10/x
  3. Step 3: Cross multiply
    1,822.02x = 2,731 × 726.10
  4. Step 4: Simplify right side
    1,822.02x = 1,982,979.10
  5. Step 5: Solve for x
    x = 1,982,979.10/1,822.02
  6. Step 6: Final answer
    x = 1,088.34

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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.