Home / 2,079.22-3,120.93-1,039.96

Finding the Fourth Proportional to 2,079.22, 3,120.93 and 1,039.96

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Solution

The fourth proportional to 2,079.22, 3,120.93 and 1,039.96 is: 1,560.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.22 : 3,120.93 = 1,039.96 : x
  2. Step 2: Convert to fraction form
    2,079.22/3,120.93 = 1,039.96/x
  3. Step 3: Cross multiply
    2,079.22x = 3,120.93 × 1,039.96
  4. Step 4: Simplify right side
    2,079.22x = 3,245,642.36
  5. Step 5: Solve for x
    x = 3,245,642.36/2,079.22
  6. Step 6: Final answer
    x = 1,560.99

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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.