Home / 4,942.29-7,412.28-1,431.36

Finding the Fourth Proportional to 4,942.29, 7,412.28 and 1,431.36

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Solution

The fourth proportional to 4,942.29, 7,412.28 and 1,431.36 is: 2,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.29 : 7,412.28 = 1,431.36 : x
  2. Step 2: Convert to fraction form
    4,942.29/7,412.28 = 1,431.36/x
  3. Step 3: Cross multiply
    4,942.29x = 7,412.28 × 1,431.36
  4. Step 4: Simplify right side
    4,942.29x = 10,609,596.88
  5. Step 5: Solve for x
    x = 10,609,596.88/4,942.29
  6. Step 6: Final answer
    x = 2,146.70

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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.