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Finding the Fourth Proportional to 6,607, 9,915.18 and 3,144.52

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Solution

The fourth proportional to 6,607, 9,915.18 and 3,144.52 is: 4,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607 : 9,915.18 = 3,144.52 : x
  2. Step 2: Convert to fraction form
    6,607/9,915.18 = 3,144.52/x
  3. Step 3: Cross multiply
    6,607x = 9,915.18 × 3,144.52
  4. Step 4: Simplify right side
    6,607x = 31,178,481.81
  5. Step 5: Solve for x
    x = 31,178,481.81/6,607
  6. Step 6: Final answer
    x = 4,719.01

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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.