Home / 3,126.96-4,690.62-935.46

Finding the Fourth Proportional to 3,126.96, 4,690.62 and 935.46

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Solution

The fourth proportional to 3,126.96, 4,690.62 and 935.46 is: 1,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.96 : 4,690.62 = 935.46 : x
  2. Step 2: Convert to fraction form
    3,126.96/4,690.62 = 935.46/x
  3. Step 3: Cross multiply
    3,126.96x = 4,690.62 × 935.46
  4. Step 4: Simplify right side
    3,126.96x = 4,387,887.39
  5. Step 5: Solve for x
    x = 4,387,887.39/3,126.96
  6. Step 6: Final answer
    x = 1,403.24

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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.