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Finding the Fourth Proportional to 2,610.35, 3,915.55 and 662.55

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Solution

The fourth proportional to 2,610.35, 3,915.55 and 662.55 is: 993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.35 : 3,915.55 = 662.55 : x
  2. Step 2: Convert to fraction form
    2,610.35/3,915.55 = 662.55/x
  3. Step 3: Cross multiply
    2,610.35x = 3,915.55 × 662.55
  4. Step 4: Simplify right side
    2,610.35x = 2,594,247.65
  5. Step 5: Solve for x
    x = 2,594,247.65/2,610.35
  6. Step 6: Final answer
    x = 993.83

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1.5x scale

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.