Home / 3,369.81-5,055.64-1,909.99

Finding the Fourth Proportional to 3,369.81, 5,055.64 and 1,909.99

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Solution

The fourth proportional to 3,369.81, 5,055.64 and 1,909.99 is: 2,865.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.81 : 5,055.64 = 1,909.99 : x
  2. Step 2: Convert to fraction form
    3,369.81/5,055.64 = 1,909.99/x
  3. Step 3: Cross multiply
    3,369.81x = 5,055.64 × 1,909.99
  4. Step 4: Simplify right side
    3,369.81x = 9,656,223.39
  5. Step 5: Solve for x
    x = 9,656,223.39/3,369.81
  6. Step 6: Final answer
    x = 2,865.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.