Home / 7,090.82-10,620.04-3,395.65

Finding the Fourth Proportional to 7,090.82, 10,620.04 and 3,395.65

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Solution

The fourth proportional to 7,090.82, 10,620.04 and 3,395.65 is: 5,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.82 : 10,620.04 = 3,395.65 : x
  2. Step 2: Convert to fraction form
    7,090.82/10,620.04 = 3,395.65/x
  3. Step 3: Cross multiply
    7,090.82x = 10,620.04 × 3,395.65
  4. Step 4: Simplify right side
    7,090.82x = 36,061,890.65
  5. Step 5: Solve for x
    x = 36,061,890.65/7,090.82
  6. Step 6: Final answer
    x = 5,085.72

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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.