Home / 5,211.73-7,816.64-1,412.45

Finding the Fourth Proportional to 5,211.73, 7,816.64 and 1,412.45

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Solution

The fourth proportional to 5,211.73, 7,816.64 and 1,412.45 is: 2,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.73 : 7,816.64 = 1,412.45 : x
  2. Step 2: Convert to fraction form
    5,211.73/7,816.64 = 1,412.45/x
  3. Step 3: Cross multiply
    5,211.73x = 7,816.64 × 1,412.45
  4. Step 4: Simplify right side
    5,211.73x = 11,040,574.08
  5. Step 5: Solve for x
    x = 11,040,574.08/5,211.73
  6. Step 6: Final answer
    x = 2,118.41

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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.