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Finding the Fourth Proportional to 2,289.46, 3,159.46 and 1,241.52

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Solution

The fourth proportional to 2,289.46, 3,159.46 and 1,241.52 is: 1,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.46 : 3,159.46 = 1,241.52 : x
  2. Step 2: Convert to fraction form
    2,289.46/3,159.46 = 1,241.52/x
  3. Step 3: Cross multiply
    2,289.46x = 3,159.46 × 1,241.52
  4. Step 4: Simplify right side
    2,289.46x = 3,922,524.39
  5. Step 5: Solve for x
    x = 3,922,524.39/2,289.46
  6. Step 6: Final answer
    x = 1,713.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.