Home / 3,414.50-5,123.70-1,854.50

Finding the Fourth Proportional to 3,414.50, 5,123.70 and 1,854.50

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Solution

The fourth proportional to 3,414.50, 5,123.70 and 1,854.50 is: 2,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.50 : 5,123.70 = 1,854.50 : x
  2. Step 2: Convert to fraction form
    3,414.50/5,123.70 = 1,854.50/x
  3. Step 3: Cross multiply
    3,414.50x = 5,123.70 × 1,854.50
  4. Step 4: Simplify right side
    3,414.50x = 9,501,901.65
  5. Step 5: Solve for x
    x = 9,501,901.65/3,414.50
  6. Step 6: Final answer
    x = 2,782.81

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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.