Home / 1,813.71-2,723.52-1,124.76

Finding the Fourth Proportional to 1,813.71, 2,723.52 and 1,124.76

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Solution

The fourth proportional to 1,813.71, 2,723.52 and 1,124.76 is: 1,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.71 : 2,723.52 = 1,124.76 : x
  2. Step 2: Convert to fraction form
    1,813.71/2,723.52 = 1,124.76/x
  3. Step 3: Cross multiply
    1,813.71x = 2,723.52 × 1,124.76
  4. Step 4: Simplify right side
    1,813.71x = 3,063,306.36
  5. Step 5: Solve for x
    x = 3,063,306.36/1,813.71
  6. Step 6: Final answer
    x = 1,688.97

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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.