Home / 2,289.86-3,159.99-1,241.92

Finding the Fourth Proportional to 2,289.86, 3,159.99 and 1,241.92

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Solution

The fourth proportional to 2,289.86, 3,159.99 and 1,241.92 is: 1,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.86 : 3,159.99 = 1,241.92 : x
  2. Step 2: Convert to fraction form
    2,289.86/3,159.99 = 1,241.92/x
  3. Step 3: Cross multiply
    2,289.86x = 3,159.99 × 1,241.92
  4. Step 4: Simplify right side
    2,289.86x = 3,924,454.78
  5. Step 5: Solve for x
    x = 3,924,454.78/2,289.86
  6. Step 6: Final answer
    x = 1,713.84

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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.