Home / 3,367.28-5,051.68-1,287.28

Finding the Fourth Proportional to 3,367.28, 5,051.68 and 1,287.28

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Solution

The fourth proportional to 3,367.28, 5,051.68 and 1,287.28 is: 1,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,367.28 : 5,051.68 = 1,287.28 : x
  2. Step 2: Convert to fraction form
    3,367.28/5,051.68 = 1,287.28/x
  3. Step 3: Cross multiply
    3,367.28x = 5,051.68 × 1,287.28
  4. Step 4: Simplify right side
    3,367.28x = 6,502,926.63
  5. Step 5: Solve for x
    x = 6,502,926.63/3,367.28
  6. Step 6: Final answer
    x = 1,931.21

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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.