Home / 4,643.14-6,949.66-2,978.29

Finding the Fourth Proportional to 4,643.14, 6,949.66 and 2,978.29

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Solution

The fourth proportional to 4,643.14, 6,949.66 and 2,978.29 is: 4,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,643.14 : 6,949.66 = 2,978.29 : x
  2. Step 2: Convert to fraction form
    4,643.14/6,949.66 = 2,978.29/x
  3. Step 3: Cross multiply
    4,643.14x = 6,949.66 × 2,978.29
  4. Step 4: Simplify right side
    4,643.14x = 20,698,102.88
  5. Step 5: Solve for x
    x = 20,698,102.88/4,643.14
  6. Step 6: Final answer
    x = 4,457.78

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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.