Home / 7,405.04-11,109.12-2,788

Finding the Fourth Proportional to 7,405.04, 11,109.12 and 2,788

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Solution

The fourth proportional to 7,405.04, 11,109.12 and 2,788 is: 4,182.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.04 : 11,109.12 = 2,788 : x
  2. Step 2: Convert to fraction form
    7,405.04/11,109.12 = 2,788/x
  3. Step 3: Cross multiply
    7,405.04x = 11,109.12 × 2,788
  4. Step 4: Simplify right side
    7,405.04x = 30,972,226.56
  5. Step 5: Solve for x
    x = 30,972,226.56/7,405.04
  6. Step 6: Final answer
    x = 4,182.59

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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.