Home / 6,319.92-8,721.04-3,802.12

Finding the Fourth Proportional to 6,319.92, 8,721.04 and 3,802.12

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Solution

The fourth proportional to 6,319.92, 8,721.04 and 3,802.12 is: 5,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.92 : 8,721.04 = 3,802.12 : x
  2. Step 2: Convert to fraction form
    6,319.92/8,721.04 = 3,802.12/x
  3. Step 3: Cross multiply
    6,319.92x = 8,721.04 × 3,802.12
  4. Step 4: Simplify right side
    6,319.92x = 33,158,440.60
  5. Step 5: Solve for x
    x = 33,158,440.60/6,319.92
  6. Step 6: Final answer
    x = 5,246.66

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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.