Home / 6,620.22-9,135.98-3,636.12

Finding the Fourth Proportional to 6,620.22, 9,135.98 and 3,636.12

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Solution

The fourth proportional to 6,620.22, 9,135.98 and 3,636.12 is: 5,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.22 : 9,135.98 = 3,636.12 : x
  2. Step 2: Convert to fraction form
    6,620.22/9,135.98 = 3,636.12/x
  3. Step 3: Cross multiply
    6,620.22x = 9,135.98 × 3,636.12
  4. Step 4: Simplify right side
    6,620.22x = 33,219,549.31
  5. Step 5: Solve for x
    x = 33,219,549.31/6,620.22
  6. Step 6: Final answer
    x = 5,017.89

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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.