Home / 5,127.08-7,688.19-2,659.43

Finding the Fourth Proportional to 5,127.08, 7,688.19 and 2,659.43

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Solution

The fourth proportional to 5,127.08, 7,688.19 and 2,659.43 is: 3,987.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.08 : 7,688.19 = 2,659.43 : x
  2. Step 2: Convert to fraction form
    5,127.08/7,688.19 = 2,659.43/x
  3. Step 3: Cross multiply
    5,127.08x = 7,688.19 × 2,659.43
  4. Step 4: Simplify right side
    5,127.08x = 20,446,203.13
  5. Step 5: Solve for x
    x = 20,446,203.13/5,127.08
  6. Step 6: Final answer
    x = 3,987.88

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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.