Home / 3,390.52-5,087.70-1,339.96

Finding the Fourth Proportional to 3,390.52, 5,087.70 and 1,339.96

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Solution

The fourth proportional to 3,390.52, 5,087.70 and 1,339.96 is: 2,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.52 : 5,087.70 = 1,339.96 : x
  2. Step 2: Convert to fraction form
    3,390.52/5,087.70 = 1,339.96/x
  3. Step 3: Cross multiply
    3,390.52x = 5,087.70 × 1,339.96
  4. Step 4: Simplify right side
    3,390.52x = 6,817,314.49
  5. Step 5: Solve for x
    x = 6,817,314.49/3,390.52
  6. Step 6: Final answer
    x = 2,010.70

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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.