Home / 7,858.12-10,844-4,272.98

Finding the Fourth Proportional to 7,858.12, 10,844 and 4,272.98

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Solution

The fourth proportional to 7,858.12, 10,844 and 4,272.98 is: 5,896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.12 : 10,844 = 4,272.98 : x
  2. Step 2: Convert to fraction form
    7,858.12/10,844 = 4,272.98/x
  3. Step 3: Cross multiply
    7,858.12x = 10,844 × 4,272.98
  4. Step 4: Simplify right side
    7,858.12x = 46,336,195.12
  5. Step 5: Solve for x
    x = 46,336,195.12/7,858.12
  6. Step 6: Final answer
    x = 5,896.60

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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.