Home / 2,643.14-3,964.55-999.66

Finding the Fourth Proportional to 2,643.14, 3,964.55 and 999.66

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Solution

The fourth proportional to 2,643.14, 3,964.55 and 999.66 is: 1,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.14 : 3,964.55 = 999.66 : x
  2. Step 2: Convert to fraction form
    2,643.14/3,964.55 = 999.66/x
  3. Step 3: Cross multiply
    2,643.14x = 3,964.55 × 999.66
  4. Step 4: Simplify right side
    2,643.14x = 3,963,202.05
  5. Step 5: Solve for x
    x = 3,963,202.05/2,643.14
  6. Step 6: Final answer
    x = 1,499.43

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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.