Home / 6,656.31-9,986.38-2,153.26

Finding the Fourth Proportional to 6,656.31, 9,986.38 and 2,153.26

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Solution

The fourth proportional to 6,656.31, 9,986.38 and 2,153.26 is: 3,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.31 : 9,986.38 = 2,153.26 : x
  2. Step 2: Convert to fraction form
    6,656.31/9,986.38 = 2,153.26/x
  3. Step 3: Cross multiply
    6,656.31x = 9,986.38 × 2,153.26
  4. Step 4: Simplify right side
    6,656.31x = 21,503,313.84
  5. Step 5: Solve for x
    x = 21,503,313.84/6,656.31
  6. Step 6: Final answer
    x = 3,230.52

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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.