Home / 2,077.74-3,115.26-845.28

Finding the Fourth Proportional to 2,077.74, 3,115.26 and 845.28

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Solution

The fourth proportional to 2,077.74, 3,115.26 and 845.28 is: 1,267.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.74 : 3,115.26 = 845.28 : x
  2. Step 2: Convert to fraction form
    2,077.74/3,115.26 = 845.28/x
  3. Step 3: Cross multiply
    2,077.74x = 3,115.26 × 845.28
  4. Step 4: Simplify right side
    2,077.74x = 2,633,266.97
  5. Step 5: Solve for x
    x = 2,633,266.97/2,077.74
  6. Step 6: Final answer
    x = 1,267.37

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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.