Home / 6,858.20-10,287.30-1,664.07

Finding the Fourth Proportional to 6,858.20, 10,287.30 and 1,664.07

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Solution

The fourth proportional to 6,858.20, 10,287.30 and 1,664.07 is: 2,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,858.20 : 10,287.30 = 1,664.07 : x
  2. Step 2: Convert to fraction form
    6,858.20/10,287.30 = 1,664.07/x
  3. Step 3: Cross multiply
    6,858.20x = 10,287.30 × 1,664.07
  4. Step 4: Simplify right side
    6,858.20x = 17,118,787.31
  5. Step 5: Solve for x
    x = 17,118,787.31/6,858.20
  6. Step 6: Final answer
    x = 2,496.11

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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.