Home / 4,763.55-7,145.80-1,643.15

Finding the Fourth Proportional to 4,763.55, 7,145.80 and 1,643.15

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Solution

The fourth proportional to 4,763.55, 7,145.80 and 1,643.15 is: 2,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,763.55 : 7,145.80 = 1,643.15 : x
  2. Step 2: Convert to fraction form
    4,763.55/7,145.80 = 1,643.15/x
  3. Step 3: Cross multiply
    4,763.55x = 7,145.80 × 1,643.15
  4. Step 4: Simplify right side
    4,763.55x = 11,741,585.54
  5. Step 5: Solve for x
    x = 11,741,585.54/4,763.55
  6. Step 6: Final answer
    x = 2,464.88

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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.