Home / 2,236.78-3,086.93-1,242.25

Finding the Fourth Proportional to 2,236.78, 3,086.93 and 1,242.25

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Solution

The fourth proportional to 2,236.78, 3,086.93 and 1,242.25 is: 1,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.78 : 3,086.93 = 1,242.25 : x
  2. Step 2: Convert to fraction form
    2,236.78/3,086.93 = 1,242.25/x
  3. Step 3: Cross multiply
    2,236.78x = 3,086.93 × 1,242.25
  4. Step 4: Simplify right side
    2,236.78x = 3,834,738.79
  5. Step 5: Solve for x
    x = 3,834,738.79/2,236.78
  6. Step 6: Final answer
    x = 1,714.40

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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.