Home / 2,771.10-4,156.58-1,127.24

Finding the Fourth Proportional to 2,771.10, 4,156.58 and 1,127.24

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Solution

The fourth proportional to 2,771.10, 4,156.58 and 1,127.24 is: 1,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.10 : 4,156.58 = 1,127.24 : x
  2. Step 2: Convert to fraction form
    2,771.10/4,156.58 = 1,127.24/x
  3. Step 3: Cross multiply
    2,771.10x = 4,156.58 × 1,127.24
  4. Step 4: Simplify right side
    2,771.10x = 4,685,436.82
  5. Step 5: Solve for x
    x = 4,685,436.82/2,771.10
  6. Step 6: Final answer
    x = 1,690.82

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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.