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Finding the Fourth Proportional to 3,113.71, 4,670.63 and 922.44

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Solution

The fourth proportional to 3,113.71, 4,670.63 and 922.44 is: 1,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.71 : 4,670.63 = 922.44 : x
  2. Step 2: Convert to fraction form
    3,113.71/4,670.63 = 922.44/x
  3. Step 3: Cross multiply
    3,113.71x = 4,670.63 × 922.44
  4. Step 4: Simplify right side
    3,113.71x = 4,308,375.94
  5. Step 5: Solve for x
    x = 4,308,375.94/3,113.71
  6. Step 6: Final answer
    x = 1,383.68

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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.