Home / 2,774.20-4,161.32-1,130.30

Finding the Fourth Proportional to 2,774.20, 4,161.32 and 1,130.30

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Solution

The fourth proportional to 2,774.20, 4,161.32 and 1,130.30 is: 1,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.20 : 4,161.32 = 1,130.30 : x
  2. Step 2: Convert to fraction form
    2,774.20/4,161.32 = 1,130.30/x
  3. Step 3: Cross multiply
    2,774.20x = 4,161.32 × 1,130.30
  4. Step 4: Simplify right side
    2,774.20x = 4,703,563.15
  5. Step 5: Solve for x
    x = 4,703,563.15/2,774.20
  6. Step 6: Final answer
    x = 1,695.47

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Similar ratio
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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.