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Finding the Fourth Proportional to 3,418.44, 5,127.57 and 953.16

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Solution

The fourth proportional to 3,418.44, 5,127.57 and 953.16 is: 1,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.44 : 5,127.57 = 953.16 : x
  2. Step 2: Convert to fraction form
    3,418.44/5,127.57 = 953.16/x
  3. Step 3: Cross multiply
    3,418.44x = 5,127.57 × 953.16
  4. Step 4: Simplify right side
    3,418.44x = 4,887,389.86
  5. Step 5: Solve for x
    x = 4,887,389.86/3,418.44
  6. Step 6: Final answer
    x = 1,429.71

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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.