Home / 3,739.66-5,159.64-2,167.72

Finding the Fourth Proportional to 3,739.66, 5,159.64 and 2,167.72

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Solution

The fourth proportional to 3,739.66, 5,159.64 and 2,167.72 is: 2,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.66 : 5,159.64 = 2,167.72 : x
  2. Step 2: Convert to fraction form
    3,739.66/5,159.64 = 2,167.72/x
  3. Step 3: Cross multiply
    3,739.66x = 5,159.64 × 2,167.72
  4. Step 4: Simplify right side
    3,739.66x = 11,184,654.82
  5. Step 5: Solve for x
    x = 11,184,654.82/3,739.66
  6. Step 6: Final answer
    x = 2,990.82

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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.