Home / 6,470.13-8,923.36-3,981.81

Finding the Fourth Proportional to 6,470.13, 8,923.36 and 3,981.81

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Solution

The fourth proportional to 6,470.13, 8,923.36 and 3,981.81 is: 5,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.13 : 8,923.36 = 3,981.81 : x
  2. Step 2: Convert to fraction form
    6,470.13/8,923.36 = 3,981.81/x
  3. Step 3: Cross multiply
    6,470.13x = 8,923.36 × 3,981.81
  4. Step 4: Simplify right side
    6,470.13x = 35,531,124.08
  5. Step 5: Solve for x
    x = 35,531,124.08/6,470.13
  6. Step 6: Final answer
    x = 5,491.56

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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.