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Finding the Fourth Proportional to 2,884.78, 4,327.78 and 937.14

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Solution

The fourth proportional to 2,884.78, 4,327.78 and 937.14 is: 1,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.78 : 4,327.78 = 937.14 : x
  2. Step 2: Convert to fraction form
    2,884.78/4,327.78 = 937.14/x
  3. Step 3: Cross multiply
    2,884.78x = 4,327.78 × 937.14
  4. Step 4: Simplify right side
    2,884.78x = 4,055,718.93
  5. Step 5: Solve for x
    x = 4,055,718.93/2,884.78
  6. Step 6: Final answer
    x = 1,405.90

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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.