Home / 7,479.07-11,218.79-3,579.19

Finding the Fourth Proportional to 7,479.07, 11,218.79 and 3,579.19

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Solution

The fourth proportional to 7,479.07, 11,218.79 and 3,579.19 is: 5,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.07 : 11,218.79 = 3,579.19 : x
  2. Step 2: Convert to fraction form
    7,479.07/11,218.79 = 3,579.19/x
  3. Step 3: Cross multiply
    7,479.07x = 11,218.79 × 3,579.19
  4. Step 4: Simplify right side
    7,479.07x = 40,154,163.08
  5. Step 5: Solve for x
    x = 40,154,163.08/7,479.07
  6. Step 6: Final answer
    x = 5,368.87

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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.