Home / 3,244.80-4,479.42-1,918.92

Finding the Fourth Proportional to 3,244.80, 4,479.42 and 1,918.92

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Solution

The fourth proportional to 3,244.80, 4,479.42 and 1,918.92 is: 2,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,244.80 : 4,479.42 = 1,918.92 : x
  2. Step 2: Convert to fraction form
    3,244.80/4,479.42 = 1,918.92/x
  3. Step 3: Cross multiply
    3,244.80x = 4,479.42 × 1,918.92
  4. Step 4: Simplify right side
    3,244.80x = 8,595,648.63
  5. Step 5: Solve for x
    x = 8,595,648.63/3,244.80
  6. Step 6: Final answer
    x = 2,649.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.