Home / 5,261.59-7,891.77-1,366.30

Finding the Fourth Proportional to 5,261.59, 7,891.77 and 1,366.30

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Solution

The fourth proportional to 5,261.59, 7,891.77 and 1,366.30 is: 2,049.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.59 : 7,891.77 = 1,366.30 : x
  2. Step 2: Convert to fraction form
    5,261.59/7,891.77 = 1,366.30/x
  3. Step 3: Cross multiply
    5,261.59x = 7,891.77 × 1,366.30
  4. Step 4: Simplify right side
    5,261.59x = 10,782,485.89
  5. Step 5: Solve for x
    x = 10,782,485.89/5,261.59
  6. Step 6: Final answer
    x = 2,049.28

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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.