Home / 2,776.70-4,169.85-2,690.30

Finding the Fourth Proportional to 2,776.70, 4,169.85 and 2,690.30

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Solution

The fourth proportional to 2,776.70, 4,169.85 and 2,690.30 is: 4,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.70 : 4,169.85 = 2,690.30 : x
  2. Step 2: Convert to fraction form
    2,776.70/4,169.85 = 2,690.30/x
  3. Step 3: Cross multiply
    2,776.70x = 4,169.85 × 2,690.30
  4. Step 4: Simplify right side
    2,776.70x = 11,218,147.46
  5. Step 5: Solve for x
    x = 11,218,147.46/2,776.70
  6. Step 6: Final answer
    x = 4,040.10

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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.