Home / 7,905.31-11,859.76-2,358.45

Finding the Fourth Proportional to 7,905.31, 11,859.76 and 2,358.45

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Solution

The fourth proportional to 7,905.31, 11,859.76 and 2,358.45 is: 3,538.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.31 : 11,859.76 = 2,358.45 : x
  2. Step 2: Convert to fraction form
    7,905.31/11,859.76 = 2,358.45/x
  3. Step 3: Cross multiply
    7,905.31x = 11,859.76 × 2,358.45
  4. Step 4: Simplify right side
    7,905.31x = 27,970,647.29
  5. Step 5: Solve for x
    x = 27,970,647.29/7,905.31
  6. Step 6: Final answer
    x = 3,538.21

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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.