Home / 2,774.66-4,161.38-1,129.55

Finding the Fourth Proportional to 2,774.66, 4,161.38 and 1,129.55

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Solution

The fourth proportional to 2,774.66, 4,161.38 and 1,129.55 is: 1,694.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.66 : 4,161.38 = 1,129.55 : x
  2. Step 2: Convert to fraction form
    2,774.66/4,161.38 = 1,129.55/x
  3. Step 3: Cross multiply
    2,774.66x = 4,161.38 × 1,129.55
  4. Step 4: Simplify right side
    2,774.66x = 4,700,460.32
  5. Step 5: Solve for x
    x = 4,700,460.32/2,774.66
  6. Step 6: Final answer
    x = 1,694.07

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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.