Home / 7,409.59-11,118.80-2,665.35

Finding the Fourth Proportional to 7,409.59, 11,118.80 and 2,665.35

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Solution

The fourth proportional to 7,409.59, 11,118.80 and 2,665.35 is: 3,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.59 : 11,118.80 = 2,665.35 : x
  2. Step 2: Convert to fraction form
    7,409.59/11,118.80 = 2,665.35/x
  3. Step 3: Cross multiply
    7,409.59x = 11,118.80 × 2,665.35
  4. Step 4: Simplify right side
    7,409.59x = 29,635,500.24
  5. Step 5: Solve for x
    x = 29,635,500.24/7,409.59
  6. Step 6: Final answer
    x = 3,999.62

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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.