Home / 6,287.13-9,422.69-3,509.78

Finding the Fourth Proportional to 6,287.13, 9,422.69 and 3,509.78

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Solution

The fourth proportional to 6,287.13, 9,422.69 and 3,509.78 is: 5,260.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.13 : 9,422.69 = 3,509.78 : x
  2. Step 2: Convert to fraction form
    6,287.13/9,422.69 = 3,509.78/x
  3. Step 3: Cross multiply
    6,287.13x = 9,422.69 × 3,509.78
  4. Step 4: Simplify right side
    6,287.13x = 33,071,504.25
  5. Step 5: Solve for x
    x = 33,071,504.25/6,287.13
  6. Step 6: Final answer
    x = 5,260.19

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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.