Home / 6,660.04-9,191.94-3,971.60

Finding the Fourth Proportional to 6,660.04, 9,191.94 and 3,971.60

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Solution

The fourth proportional to 6,660.04, 9,191.94 and 3,971.60 is: 5,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.04 : 9,191.94 = 3,971.60 : x
  2. Step 2: Convert to fraction form
    6,660.04/9,191.94 = 3,971.60/x
  3. Step 3: Cross multiply
    6,660.04x = 9,191.94 × 3,971.60
  4. Step 4: Simplify right side
    6,660.04x = 36,506,708.90
  5. Step 5: Solve for x
    x = 36,506,708.90/6,660.04
  6. Step 6: Final answer
    x = 5,481.45

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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.