Home / 6,539.20-9,809.76-2,155.60

Finding the Fourth Proportional to 6,539.20, 9,809.76 and 2,155.60

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Solution

The fourth proportional to 6,539.20, 9,809.76 and 2,155.60 is: 3,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.20 : 9,809.76 = 2,155.60 : x
  2. Step 2: Convert to fraction form
    6,539.20/9,809.76 = 2,155.60/x
  3. Step 3: Cross multiply
    6,539.20x = 9,809.76 × 2,155.60
  4. Step 4: Simplify right side
    6,539.20x = 21,145,918.66
  5. Step 5: Solve for x
    x = 21,145,918.66/6,539.20
  6. Step 6: Final answer
    x = 3,233.72

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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.