Home / 7,835.40-11,755.27-3,619.94

Finding the Fourth Proportional to 7,835.40, 11,755.27 and 3,619.94

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Solution

The fourth proportional to 7,835.40, 11,755.27 and 3,619.94 is: 5,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.40 : 11,755.27 = 3,619.94 : x
  2. Step 2: Convert to fraction form
    7,835.40/11,755.27 = 3,619.94/x
  3. Step 3: Cross multiply
    7,835.40x = 11,755.27 × 3,619.94
  4. Step 4: Simplify right side
    7,835.40x = 42,553,372.08
  5. Step 5: Solve for x
    x = 42,553,372.08/7,835.40
  6. Step 6: Final answer
    x = 5,430.91

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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.