Home / 6,991.80-10,488.96-2,609.16

Finding the Fourth Proportional to 6,991.80, 10,488.96 and 2,609.16

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Solution

The fourth proportional to 6,991.80, 10,488.96 and 2,609.16 is: 3,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.80 : 10,488.96 = 2,609.16 : x
  2. Step 2: Convert to fraction form
    6,991.80/10,488.96 = 2,609.16/x
  3. Step 3: Cross multiply
    6,991.80x = 10,488.96 × 2,609.16
  4. Step 4: Simplify right side
    6,991.80x = 27,367,374.87
  5. Step 5: Solve for x
    x = 27,367,374.87/6,991.80
  6. Step 6: Final answer
    x = 3,914.21

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1.5x scale

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.