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Finding the Fourth Proportional to 2,243.48, 3,364.48 and 856.76

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Solution

The fourth proportional to 2,243.48, 3,364.48 and 856.76 is: 1,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,243.48 : 3,364.48 = 856.76 : x
  2. Step 2: Convert to fraction form
    2,243.48/3,364.48 = 856.76/x
  3. Step 3: Cross multiply
    2,243.48x = 3,364.48 × 856.76
  4. Step 4: Simplify right side
    2,243.48x = 2,882,551.88
  5. Step 5: Solve for x
    x = 2,882,551.88/2,243.48
  6. Step 6: Final answer
    x = 1,284.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.