Home / 7,319.94-10,981.41-2,389.47

Finding the Fourth Proportional to 7,319.94, 10,981.41 and 2,389.47

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Solution

The fourth proportional to 7,319.94, 10,981.41 and 2,389.47 is: 3,584.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.94 : 10,981.41 = 2,389.47 : x
  2. Step 2: Convert to fraction form
    7,319.94/10,981.41 = 2,389.47/x
  3. Step 3: Cross multiply
    7,319.94x = 10,981.41 × 2,389.47
  4. Step 4: Simplify right side
    7,319.94x = 26,239,749.75
  5. Step 5: Solve for x
    x = 26,239,749.75/7,319.94
  6. Step 6: Final answer
    x = 3,584.69

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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.