Home / 2,012.87-2,777.75-1,226.92

Finding the Fourth Proportional to 2,012.87, 2,777.75 and 1,226.92

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Solution

The fourth proportional to 2,012.87, 2,777.75 and 1,226.92 is: 1,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.87 : 2,777.75 = 1,226.92 : x
  2. Step 2: Convert to fraction form
    2,012.87/2,777.75 = 1,226.92/x
  3. Step 3: Cross multiply
    2,012.87x = 2,777.75 × 1,226.92
  4. Step 4: Simplify right side
    2,012.87x = 3,408,077.03
  5. Step 5: Solve for x
    x = 3,408,077.03/2,012.87
  6. Step 6: Final answer
    x = 1,693.14

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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.