Home / 2,613.12-3,919.68-1,074.24

Finding the Fourth Proportional to 2,613.12, 3,919.68 and 1,074.24

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Solution

The fourth proportional to 2,613.12, 3,919.68 and 1,074.24 is: 1,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.12 : 3,919.68 = 1,074.24 : x
  2. Step 2: Convert to fraction form
    2,613.12/3,919.68 = 1,074.24/x
  3. Step 3: Cross multiply
    2,613.12x = 3,919.68 × 1,074.24
  4. Step 4: Simplify right side
    2,613.12x = 4,210,677.04
  5. Step 5: Solve for x
    x = 4,210,677.04/2,613.12
  6. Step 6: Final answer
    x = 1,611.36

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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.