Home / 4,629.69-6,388.50-2,640.14

Finding the Fourth Proportional to 4,629.69, 6,388.50 and 2,640.14

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Solution

The fourth proportional to 4,629.69, 6,388.50 and 2,640.14 is: 3,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,629.69 : 6,388.50 = 2,640.14 : x
  2. Step 2: Convert to fraction form
    4,629.69/6,388.50 = 2,640.14/x
  3. Step 3: Cross multiply
    4,629.69x = 6,388.50 × 2,640.14
  4. Step 4: Simplify right side
    4,629.69x = 16,866,534.39
  5. Step 5: Solve for x
    x = 16,866,534.39/4,629.69
  6. Step 6: Final answer
    x = 3,643.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.