Home / 6,672.79-9,208.20-3,688.66

Finding the Fourth Proportional to 6,672.79, 9,208.20 and 3,688.66

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Solution

The fourth proportional to 6,672.79, 9,208.20 and 3,688.66 is: 5,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.79 : 9,208.20 = 3,688.66 : x
  2. Step 2: Convert to fraction form
    6,672.79/9,208.20 = 3,688.66/x
  3. Step 3: Cross multiply
    6,672.79x = 9,208.20 × 3,688.66
  4. Step 4: Simplify right side
    6,672.79x = 33,965,919.01
  5. Step 5: Solve for x
    x = 33,965,919.01/6,672.79
  6. Step 6: Final answer
    x = 5,090.21

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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.