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Finding the Fourth Proportional to 3,113.91, 4,670.97 and 922.46

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Solution

The fourth proportional to 3,113.91, 4,670.97 and 922.46 is: 1,383.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.91 : 4,670.97 = 922.46 : x
  2. Step 2: Convert to fraction form
    3,113.91/4,670.97 = 922.46/x
  3. Step 3: Cross multiply
    3,113.91x = 4,670.97 × 922.46
  4. Step 4: Simplify right side
    3,113.91x = 4,308,756.17
  5. Step 5: Solve for x
    x = 4,308,756.17/3,113.91
  6. Step 6: Final answer
    x = 1,383.71

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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.