Home / 3,479.09-5,218.63-3,437.78

Finding the Fourth Proportional to 3,479.09, 5,218.63 and 3,437.78

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Solution

The fourth proportional to 3,479.09, 5,218.63 and 3,437.78 is: 5,156.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.09 : 5,218.63 = 3,437.78 : x
  2. Step 2: Convert to fraction form
    3,479.09/5,218.63 = 3,437.78/x
  3. Step 3: Cross multiply
    3,479.09x = 5,218.63 × 3,437.78
  4. Step 4: Simplify right side
    3,479.09x = 17,940,467.15
  5. Step 5: Solve for x
    x = 17,940,467.15/3,479.09
  6. Step 6: Final answer
    x = 5,156.66

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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.