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Finding the Fourth Proportional to 6,378.92, 8,804.22 and 4,019.48

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Solution

The fourth proportional to 6,378.92, 8,804.22 and 4,019.48 is: 5,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.92 : 8,804.22 = 4,019.48 : x
  2. Step 2: Convert to fraction form
    6,378.92/8,804.22 = 4,019.48/x
  3. Step 3: Cross multiply
    6,378.92x = 8,804.22 × 4,019.48
  4. Step 4: Simplify right side
    6,378.92x = 35,388,386.21
  5. Step 5: Solve for x
    x = 35,388,386.21/6,378.92
  6. Step 6: Final answer
    x = 5,547.71

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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.