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Finding the Fourth Proportional to 2,446.81, 3,670.21 and 803.49

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Solution

The fourth proportional to 2,446.81, 3,670.21 and 803.49 is: 1,205.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,446.81 : 3,670.21 = 803.49 : x
  2. Step 2: Convert to fraction form
    2,446.81/3,670.21 = 803.49/x
  3. Step 3: Cross multiply
    2,446.81x = 3,670.21 × 803.49
  4. Step 4: Simplify right side
    2,446.81x = 2,948,964.27
  5. Step 5: Solve for x
    x = 2,948,964.27/2,446.81
  6. Step 6: Final answer
    x = 1,205.23

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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.