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Finding the Fourth Proportional to 2,256.84, 3,383.22 and 869.30

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Solution

The fourth proportional to 2,256.84, 3,383.22 and 869.30 is: 1,303.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.84 : 3,383.22 = 869.30 : x
  2. Step 2: Convert to fraction form
    2,256.84/3,383.22 = 869.30/x
  3. Step 3: Cross multiply
    2,256.84x = 3,383.22 × 869.30
  4. Step 4: Simplify right side
    2,256.84x = 2,941,016.23
  5. Step 5: Solve for x
    x = 2,941,016.23/2,256.84
  6. Step 6: Final answer
    x = 1,303.16

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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.