Home / 2,742.41-4,114.24-1,280.77

Finding the Fourth Proportional to 2,742.41, 4,114.24 and 1,280.77

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Solution

The fourth proportional to 2,742.41, 4,114.24 and 1,280.77 is: 1,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.41 : 4,114.24 = 1,280.77 : x
  2. Step 2: Convert to fraction form
    2,742.41/4,114.24 = 1,280.77/x
  3. Step 3: Cross multiply
    2,742.41x = 4,114.24 × 1,280.77
  4. Step 4: Simplify right side
    2,742.41x = 5,269,381.68
  5. Step 5: Solve for x
    x = 5,269,381.68/2,742.41
  6. Step 6: Final answer
    x = 1,921.44

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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.