Home / 2,079.07-3,115.86-845.80

Finding the Fourth Proportional to 2,079.07, 3,115.86 and 845.80

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Solution

The fourth proportional to 2,079.07, 3,115.86 and 845.80 is: 1,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.07 : 3,115.86 = 845.80 : x
  2. Step 2: Convert to fraction form
    2,079.07/3,115.86 = 845.80/x
  3. Step 3: Cross multiply
    2,079.07x = 3,115.86 × 845.80
  4. Step 4: Simplify right side
    2,079.07x = 2,635,394.39
  5. Step 5: Solve for x
    x = 2,635,394.39/2,079.07
  6. Step 6: Final answer
    x = 1,267.58

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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.