Home / 6,513.31-9,770.87-2,129.32

Finding the Fourth Proportional to 6,513.31, 9,770.87 and 2,129.32

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Solution

The fourth proportional to 6,513.31, 9,770.87 and 2,129.32 is: 3,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.31 : 9,770.87 = 2,129.32 : x
  2. Step 2: Convert to fraction form
    6,513.31/9,770.87 = 2,129.32/x
  3. Step 3: Cross multiply
    6,513.31x = 9,770.87 × 2,129.32
  4. Step 4: Simplify right side
    6,513.31x = 20,805,308.91
  5. Step 5: Solve for x
    x = 20,805,308.91/6,513.31
  6. Step 6: Final answer
    x = 3,194.28

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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.