Home / 7,810.92-11,720.70-3,197.16

Finding the Fourth Proportional to 7,810.92, 11,720.70 and 3,197.16

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Solution

The fourth proportional to 7,810.92, 11,720.70 and 3,197.16 is: 4,797.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.92 : 11,720.70 = 3,197.16 : x
  2. Step 2: Convert to fraction form
    7,810.92/11,720.70 = 3,197.16/x
  3. Step 3: Cross multiply
    7,810.92x = 11,720.70 × 3,197.16
  4. Step 4: Simplify right side
    7,810.92x = 37,472,953.21
  5. Step 5: Solve for x
    x = 37,472,953.21/7,810.92
  6. Step 6: Final answer
    x = 4,797.51

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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.