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Finding the Fourth Proportional to 2,555.69, 3,833.54 and 824.57

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Solution

The fourth proportional to 2,555.69, 3,833.54 and 824.57 is: 1,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.69 : 3,833.54 = 824.57 : x
  2. Step 2: Convert to fraction form
    2,555.69/3,833.54 = 824.57/x
  3. Step 3: Cross multiply
    2,555.69x = 3,833.54 × 824.57
  4. Step 4: Simplify right side
    2,555.69x = 3,161,022.08
  5. Step 5: Solve for x
    x = 3,161,022.08/2,555.69
  6. Step 6: Final answer
    x = 1,236.86

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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.