Home / 2,082.95-2,874.44-1,138.77

Finding the Fourth Proportional to 2,082.95, 2,874.44 and 1,138.77

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Solution

The fourth proportional to 2,082.95, 2,874.44 and 1,138.77 is: 1,571.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.95 : 2,874.44 = 1,138.77 : x
  2. Step 2: Convert to fraction form
    2,082.95/2,874.44 = 1,138.77/x
  3. Step 3: Cross multiply
    2,082.95x = 2,874.44 × 1,138.77
  4. Step 4: Simplify right side
    2,082.95x = 3,273,326.04
  5. Step 5: Solve for x
    x = 3,273,326.04/2,082.95
  6. Step 6: Final answer
    x = 1,571.49

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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.