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Finding the Fourth Proportional to 2,945.42, 4,418.12 and 754.14

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Solution

The fourth proportional to 2,945.42, 4,418.12 and 754.14 is: 1,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.42 : 4,418.12 = 754.14 : x
  2. Step 2: Convert to fraction form
    2,945.42/4,418.12 = 754.14/x
  3. Step 3: Cross multiply
    2,945.42x = 4,418.12 × 754.14
  4. Step 4: Simplify right side
    2,945.42x = 3,331,881.02
  5. Step 5: Solve for x
    x = 3,331,881.02/2,945.42
  6. Step 6: Final answer
    x = 1,131.21

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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.