Home / 2,267.87-3,129.49-1,272.96

Finding the Fourth Proportional to 2,267.87, 3,129.49 and 1,272.96

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Solution

The fourth proportional to 2,267.87, 3,129.49 and 1,272.96 is: 1,756.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.87 : 3,129.49 = 1,272.96 : x
  2. Step 2: Convert to fraction form
    2,267.87/3,129.49 = 1,272.96/x
  3. Step 3: Cross multiply
    2,267.87x = 3,129.49 × 1,272.96
  4. Step 4: Simplify right side
    2,267.87x = 3,983,711.31
  5. Step 5: Solve for x
    x = 3,983,711.31/2,267.87
  6. Step 6: Final answer
    x = 1,756.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.