Home / 2,611.24-3,919.02-1,959.88

Finding the Fourth Proportional to 2,611.24, 3,919.02 and 1,959.88

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Solution

The fourth proportional to 2,611.24, 3,919.02 and 1,959.88 is: 2,941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.24 : 3,919.02 = 1,959.88 : x
  2. Step 2: Convert to fraction form
    2,611.24/3,919.02 = 1,959.88/x
  3. Step 3: Cross multiply
    2,611.24x = 3,919.02 × 1,959.88
  4. Step 4: Simplify right side
    2,611.24x = 7,680,808.92
  5. Step 5: Solve for x
    x = 7,680,808.92/2,611.24
  6. Step 6: Final answer
    x = 2,941.44

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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.