Home / 3,670.24-5,064.94-1,991.68

Finding the Fourth Proportional to 3,670.24, 5,064.94 and 1,991.68

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Solution

The fourth proportional to 3,670.24, 5,064.94 and 1,991.68 is: 2,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.24 : 5,064.94 = 1,991.68 : x
  2. Step 2: Convert to fraction form
    3,670.24/5,064.94 = 1,991.68/x
  3. Step 3: Cross multiply
    3,670.24x = 5,064.94 × 1,991.68
  4. Step 4: Simplify right side
    3,670.24x = 10,087,739.70
  5. Step 5: Solve for x
    x = 10,087,739.70/3,670.24
  6. Step 6: Final answer
    x = 2,748.52

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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.