Home / 2,077.05-3,111.80-1,208.73

Finding the Fourth Proportional to 2,077.05, 3,111.80 and 1,208.73

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Solution

The fourth proportional to 2,077.05, 3,111.80 and 1,208.73 is: 1,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.05 : 3,111.80 = 1,208.73 : x
  2. Step 2: Convert to fraction form
    2,077.05/3,111.80 = 1,208.73/x
  3. Step 3: Cross multiply
    2,077.05x = 3,111.80 × 1,208.73
  4. Step 4: Simplify right side
    2,077.05x = 3,761,319.97
  5. Step 5: Solve for x
    x = 3,761,319.97/2,077.05
  6. Step 6: Final answer
    x = 1,810.90

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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.