Home / 6,619.89-9,132.84-3,967.56

Finding the Fourth Proportional to 6,619.89, 9,132.84 and 3,967.56

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Solution

The fourth proportional to 6,619.89, 9,132.84 and 3,967.56 is: 5,473.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.89 : 9,132.84 = 3,967.56 : x
  2. Step 2: Convert to fraction form
    6,619.89/9,132.84 = 3,967.56/x
  3. Step 3: Cross multiply
    6,619.89x = 9,132.84 × 3,967.56
  4. Step 4: Simplify right side
    6,619.89x = 36,235,090.67
  5. Step 5: Solve for x
    x = 36,235,090.67/6,619.89
  6. Step 6: Final answer
    x = 5,473.67

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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.