Home / 6,679.20-9,215.64-4,318.50

Finding the Fourth Proportional to 6,679.20, 9,215.64 and 4,318.50

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Solution

The fourth proportional to 6,679.20, 9,215.64 and 4,318.50 is: 5,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.20 : 9,215.64 = 4,318.50 : x
  2. Step 2: Convert to fraction form
    6,679.20/9,215.64 = 4,318.50/x
  3. Step 3: Cross multiply
    6,679.20x = 9,215.64 × 4,318.50
  4. Step 4: Simplify right side
    6,679.20x = 39,797,741.34
  5. Step 5: Solve for x
    x = 39,797,741.34/6,679.20
  6. Step 6: Final answer
    x = 5,958.46

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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.