Home / 7,645.31-11,471.88-3,484.75

Finding the Fourth Proportional to 7,645.31, 11,471.88 and 3,484.75

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Solution

The fourth proportional to 7,645.31, 11,471.88 and 3,484.75 is: 5,228.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,645.31 : 11,471.88 = 3,484.75 : x
  2. Step 2: Convert to fraction form
    7,645.31/11,471.88 = 3,484.75/x
  3. Step 3: Cross multiply
    7,645.31x = 11,471.88 × 3,484.75
  4. Step 4: Simplify right side
    7,645.31x = 39,976,633.83
  5. Step 5: Solve for x
    x = 39,976,633.83/7,645.31
  6. Step 6: Final answer
    x = 5,228.91

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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.