Home / 2,771.55-4,158.27-1,310.85

Finding the Fourth Proportional to 2,771.55, 4,158.27 and 1,310.85

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Solution

The fourth proportional to 2,771.55, 4,158.27 and 1,310.85 is: 1,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.55 : 4,158.27 = 1,310.85 : x
  2. Step 2: Convert to fraction form
    2,771.55/4,158.27 = 1,310.85/x
  3. Step 3: Cross multiply
    2,771.55x = 4,158.27 × 1,310.85
  4. Step 4: Simplify right side
    2,771.55x = 5,450,868.23
  5. Step 5: Solve for x
    x = 5,450,868.23/2,771.55
  6. Step 6: Final answer
    x = 1,966.72

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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.