Home / 3,415.45-5,123.27-1,335.37

Finding the Fourth Proportional to 3,415.45, 5,123.27 and 1,335.37

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Solution

The fourth proportional to 3,415.45, 5,123.27 and 1,335.37 is: 2,003.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.45 : 5,123.27 = 1,335.37 : x
  2. Step 2: Convert to fraction form
    3,415.45/5,123.27 = 1,335.37/x
  3. Step 3: Cross multiply
    3,415.45x = 5,123.27 × 1,335.37
  4. Step 4: Simplify right side
    3,415.45x = 6,841,461.06
  5. Step 5: Solve for x
    x = 6,841,461.06/3,415.45
  6. Step 6: Final answer
    x = 2,003.09

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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.