Home / 3,739.12-5,160-2,167.52

Finding the Fourth Proportional to 3,739.12, 5,160 and 2,167.52

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Solution

The fourth proportional to 3,739.12, 5,160 and 2,167.52 is: 2,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.12 : 5,160 = 2,167.52 : x
  2. Step 2: Convert to fraction form
    3,739.12/5,160 = 2,167.52/x
  3. Step 3: Cross multiply
    3,739.12x = 5,160 × 2,167.52
  4. Step 4: Simplify right side
    3,739.12x = 11,184,403.20
  5. Step 5: Solve for x
    x = 11,184,403.20/3,739.12
  6. Step 6: Final answer
    x = 2,991.19

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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.