Home / 3,415.08-5,123.26-1,873.96

Finding the Fourth Proportional to 3,415.08, 5,123.26 and 1,873.96

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Solution

The fourth proportional to 3,415.08, 5,123.26 and 1,873.96 is: 2,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.08 : 5,123.26 = 1,873.96 : x
  2. Step 2: Convert to fraction form
    3,415.08/5,123.26 = 1,873.96/x
  3. Step 3: Cross multiply
    3,415.08x = 5,123.26 × 1,873.96
  4. Step 4: Simplify right side
    3,415.08x = 9,600,784.31
  5. Step 5: Solve for x
    x = 9,600,784.31/3,415.08
  6. Step 6: Final answer
    x = 2,811.29

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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.