Home / 2,236.75-3,086.64-1,292.53

Finding the Fourth Proportional to 2,236.75, 3,086.64 and 1,292.53

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Solution

The fourth proportional to 2,236.75, 3,086.64 and 1,292.53 is: 1,783.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.75 : 3,086.64 = 1,292.53 : x
  2. Step 2: Convert to fraction form
    2,236.75/3,086.64 = 1,292.53/x
  3. Step 3: Cross multiply
    2,236.75x = 3,086.64 × 1,292.53
  4. Step 4: Simplify right side
    2,236.75x = 3,989,574.80
  5. Step 5: Solve for x
    x = 3,989,574.80/2,236.75
  6. Step 6: Final answer
    x = 1,783.65

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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.