Home / 7,801.31-11,699.53-2,605.97

Finding the Fourth Proportional to 7,801.31, 11,699.53 and 2,605.97

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Solution

The fourth proportional to 7,801.31, 11,699.53 and 2,605.97 is: 3,908.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.31 : 11,699.53 = 2,605.97 : x
  2. Step 2: Convert to fraction form
    7,801.31/11,699.53 = 2,605.97/x
  3. Step 3: Cross multiply
    7,801.31x = 11,699.53 × 2,605.97
  4. Step 4: Simplify right side
    7,801.31x = 30,488,617.71
  5. Step 5: Solve for x
    x = 30,488,617.71/7,801.31
  6. Step 6: Final answer
    x = 3,908.14

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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.