Home / 2,776.48-4,161.12-1,131.12

Finding the Fourth Proportional to 2,776.48, 4,161.12 and 1,131.12

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Solution

The fourth proportional to 2,776.48, 4,161.12 and 1,131.12 is: 1,695.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.48 : 4,161.12 = 1,131.12 : x
  2. Step 2: Convert to fraction form
    2,776.48/4,161.12 = 1,131.12/x
  3. Step 3: Cross multiply
    2,776.48x = 4,161.12 × 1,131.12
  4. Step 4: Simplify right side
    2,776.48x = 4,706,726.05
  5. Step 5: Solve for x
    x = 4,706,726.05/2,776.48
  6. Step 6: Final answer
    x = 1,695.21

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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.