Home / 2,289.66-3,159.74-1,241.72

Finding the Fourth Proportional to 2,289.66, 3,159.74 and 1,241.72

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Solution

The fourth proportional to 2,289.66, 3,159.74 and 1,241.72 is: 1,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.66 : 3,159.74 = 1,241.72 : x
  2. Step 2: Convert to fraction form
    2,289.66/3,159.74 = 1,241.72/x
  3. Step 3: Cross multiply
    2,289.66x = 3,159.74 × 1,241.72
  4. Step 4: Simplify right side
    2,289.66x = 3,923,512.35
  5. Step 5: Solve for x
    x = 3,923,512.35/2,289.66
  6. Step 6: Final answer
    x = 1,713.58

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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.