Home / 1,643.18-2,464.96-669.30

Finding the Fourth Proportional to 1,643.18, 2,464.96 and 669.30

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Solution

The fourth proportional to 1,643.18, 2,464.96 and 669.30 is: 1,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.18 : 2,464.96 = 669.30 : x
  2. Step 2: Convert to fraction form
    1,643.18/2,464.96 = 669.30/x
  3. Step 3: Cross multiply
    1,643.18x = 2,464.96 × 669.30
  4. Step 4: Simplify right side
    1,643.18x = 1,649,797.73
  5. Step 5: Solve for x
    x = 1,649,797.73/1,643.18
  6. Step 6: Final answer
    x = 1,004.03

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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.