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Finding the Fourth Proportional to 6,871, 10,307.31 and 2,254

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Solution

The fourth proportional to 6,871, 10,307.31 and 2,254 is: 3,381.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871 : 10,307.31 = 2,254 : x
  2. Step 2: Convert to fraction form
    6,871/10,307.31 = 2,254/x
  3. Step 3: Cross multiply
    6,871x = 10,307.31 × 2,254
  4. Step 4: Simplify right side
    6,871x = 23,232,676.74
  5. Step 5: Solve for x
    x = 23,232,676.74/6,871
  6. Step 6: Final answer
    x = 3,381.27

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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.