Home / 2,289.21-3,159.13-1,241.27

Finding the Fourth Proportional to 2,289.21, 3,159.13 and 1,241.27

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Solution

The fourth proportional to 2,289.21, 3,159.13 and 1,241.27 is: 1,712.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.21 : 3,159.13 = 1,241.27 : x
  2. Step 2: Convert to fraction form
    2,289.21/3,159.13 = 1,241.27/x
  3. Step 3: Cross multiply
    2,289.21x = 3,159.13 × 1,241.27
  4. Step 4: Simplify right side
    2,289.21x = 3,921,342.85
  5. Step 5: Solve for x
    x = 3,921,342.85/2,289.21
  6. Step 6: Final answer
    x = 1,712.97

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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.