Home / 3,670.12-5,064.71-1,991.51

Finding the Fourth Proportional to 3,670.12, 5,064.71 and 1,991.51

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Solution

The fourth proportional to 3,670.12, 5,064.71 and 1,991.51 is: 2,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.12 : 5,064.71 = 1,991.51 : x
  2. Step 2: Convert to fraction form
    3,670.12/5,064.71 = 1,991.51/x
  3. Step 3: Cross multiply
    3,670.12x = 5,064.71 × 1,991.51
  4. Step 4: Simplify right side
    3,670.12x = 10,086,409.54
  5. Step 5: Solve for x
    x = 10,086,409.54/3,670.12
  6. Step 6: Final answer
    x = 2,748.25

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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.