Home / 5,166.64-7,129.75-2,808.73

Finding the Fourth Proportional to 5,166.64, 7,129.75 and 2,808.73

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Solution

The fourth proportional to 5,166.64, 7,129.75 and 2,808.73 is: 3,875.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.64 : 7,129.75 = 2,808.73 : x
  2. Step 2: Convert to fraction form
    5,166.64/7,129.75 = 2,808.73/x
  3. Step 3: Cross multiply
    5,166.64x = 7,129.75 × 2,808.73
  4. Step 4: Simplify right side
    5,166.64x = 20,025,542.72
  5. Step 5: Solve for x
    x = 20,025,542.72/5,166.64
  6. Step 6: Final answer
    x = 3,875.93

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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.