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Finding the Fourth Proportional to 6,858.99, 10,287.24 and 1,927.42

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Solution

The fourth proportional to 6,858.99, 10,287.24 and 1,927.42 is: 2,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,858.99 : 10,287.24 = 1,927.42 : x
  2. Step 2: Convert to fraction form
    6,858.99/10,287.24 = 1,927.42/x
  3. Step 3: Cross multiply
    6,858.99x = 10,287.24 × 1,927.42
  4. Step 4: Simplify right side
    6,858.99x = 19,827,832.12
  5. Step 5: Solve for x
    x = 19,827,832.12/6,858.99
  6. Step 6: Final answer
    x = 2,890.78

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1.5x scale

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.