Home / 5,150.55-7,727.91-1,863.90

Finding the Fourth Proportional to 5,150.55, 7,727.91 and 1,863.90

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Solution

The fourth proportional to 5,150.55, 7,727.91 and 1,863.90 is: 2,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.55 : 7,727.91 = 1,863.90 : x
  2. Step 2: Convert to fraction form
    5,150.55/7,727.91 = 1,863.90/x
  3. Step 3: Cross multiply
    5,150.55x = 7,727.91 × 1,863.90
  4. Step 4: Simplify right side
    5,150.55x = 14,404,051.45
  5. Step 5: Solve for x
    x = 14,404,051.45/5,150.55
  6. Step 6: Final answer
    x = 2,796.60

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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.