Home / 3,716.81-5,129.05-2,223.84

Finding the Fourth Proportional to 3,716.81, 5,129.05 and 2,223.84

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Solution

The fourth proportional to 3,716.81, 5,129.05 and 2,223.84 is: 3,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.81 : 5,129.05 = 2,223.84 : x
  2. Step 2: Convert to fraction form
    3,716.81/5,129.05 = 2,223.84/x
  3. Step 3: Cross multiply
    3,716.81x = 5,129.05 × 2,223.84
  4. Step 4: Simplify right side
    3,716.81x = 11,406,186.55
  5. Step 5: Solve for x
    x = 11,406,186.55/3,716.81
  6. Step 6: Final answer
    x = 3,068.81

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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.