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Finding the Fourth Proportional to 6,218, 9,327 and 1,835.40

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Solution

The fourth proportional to 6,218, 9,327 and 1,835.40 is: 2,753.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218 : 9,327 = 1,835.40 : x
  2. Step 2: Convert to fraction form
    6,218/9,327 = 1,835.40/x
  3. Step 3: Cross multiply
    6,218x = 9,327 × 1,835.40
  4. Step 4: Simplify right side
    6,218x = 17,118,729.17
  5. Step 5: Solve for x
    x = 17,118,729.17/6,218
  6. Step 6: Final answer
    x = 2,753.09

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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.