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Finding the Fourth Proportional to 3,234.40, 4,851.68 and 925.92

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Solution

The fourth proportional to 3,234.40, 4,851.68 and 925.92 is: 1,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,234.40 : 4,851.68 = 925.92 : x
  2. Step 2: Convert to fraction form
    3,234.40/4,851.68 = 925.92/x
  3. Step 3: Cross multiply
    3,234.40x = 4,851.68 × 925.92
  4. Step 4: Simplify right side
    3,234.40x = 4,492,267.55
  5. Step 5: Solve for x
    x = 4,492,267.55/3,234.40
  6. Step 6: Final answer
    x = 1,388.90

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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.