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Finding the Fourth Proportional to 2,447.47, 3,671.66 and 804.49

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Solution

The fourth proportional to 2,447.47, 3,671.66 and 804.49 is: 1,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.47 : 3,671.66 = 804.49 : x
  2. Step 2: Convert to fraction form
    2,447.47/3,671.66 = 804.49/x
  3. Step 3: Cross multiply
    2,447.47x = 3,671.66 × 804.49
  4. Step 4: Simplify right side
    2,447.47x = 2,953,813.75
  5. Step 5: Solve for x
    x = 2,953,813.75/2,447.47
  6. Step 6: Final answer
    x = 1,206.88

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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.