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Finding the Fourth Proportional to 7,858.07, 10,843.84 and 4,321.07

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Solution

The fourth proportional to 7,858.07, 10,843.84 and 4,321.07 is: 5,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.07 : 10,843.84 = 4,321.07 : x
  2. Step 2: Convert to fraction form
    7,858.07/10,843.84 = 4,321.07/x
  3. Step 3: Cross multiply
    7,858.07x = 10,843.84 × 4,321.07
  4. Step 4: Simplify right side
    7,858.07x = 46,856,970.10
  5. Step 5: Solve for x
    x = 46,856,970.10/7,858.07
  6. Step 6: Final answer
    x = 5,962.91

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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.