Home / 2,289.57-3,159.63-1,241.64

Finding the Fourth Proportional to 2,289.57, 3,159.63 and 1,241.64

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Solution

The fourth proportional to 2,289.57, 3,159.63 and 1,241.64 is: 1,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.57 : 3,159.63 = 1,241.64 : x
  2. Step 2: Convert to fraction form
    2,289.57/3,159.63 = 1,241.64/x
  3. Step 3: Cross multiply
    2,289.57x = 3,159.63 × 1,241.64
  4. Step 4: Simplify right side
    2,289.57x = 3,923,122.99
  5. Step 5: Solve for x
    x = 3,923,122.99/2,289.57
  6. Step 6: Final answer
    x = 1,713.48

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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.