Home / 6,688.80-10,032.48-3,906.72

Finding the Fourth Proportional to 6,688.80, 10,032.48 and 3,906.72

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Solution

The fourth proportional to 6,688.80, 10,032.48 and 3,906.72 is: 5,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.80 : 10,032.48 = 3,906.72 : x
  2. Step 2: Convert to fraction form
    6,688.80/10,032.48 = 3,906.72/x
  3. Step 3: Cross multiply
    6,688.80x = 10,032.48 × 3,906.72
  4. Step 4: Simplify right side
    6,688.80x = 39,194,090.27
  5. Step 5: Solve for x
    x = 39,194,090.27/6,688.80
  6. Step 6: Final answer
    x = 5,859.66

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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.