Home / 7,430.31-11,145.45-2,498.61

Finding the Fourth Proportional to 7,430.31, 11,145.45 and 2,498.61

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Solution

The fourth proportional to 7,430.31, 11,145.45 and 2,498.61 is: 3,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.31 : 11,145.45 = 2,498.61 : x
  2. Step 2: Convert to fraction form
    7,430.31/11,145.45 = 2,498.61/x
  3. Step 3: Cross multiply
    7,430.31x = 11,145.45 × 2,498.61
  4. Step 4: Simplify right side
    7,430.31x = 27,848,132.82
  5. Step 5: Solve for x
    x = 27,848,132.82/7,430.31
  6. Step 6: Final answer
    x = 3,747.91

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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.