Home / 6,318.91-8,720.87-3,802.33

Finding the Fourth Proportional to 6,318.91, 8,720.87 and 3,802.33

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Solution

The fourth proportional to 6,318.91, 8,720.87 and 3,802.33 is: 5,247.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.91 : 8,720.87 = 3,802.33 : x
  2. Step 2: Convert to fraction form
    6,318.91/8,720.87 = 3,802.33/x
  3. Step 3: Cross multiply
    6,318.91x = 8,720.87 × 3,802.33
  4. Step 4: Simplify right side
    6,318.91x = 33,159,625.63
  5. Step 5: Solve for x
    x = 33,159,625.63/6,318.91
  6. Step 6: Final answer
    x = 5,247.68

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1.5x scale

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.