Home / 5,110.21-7,665.30-1,412.43

Finding the Fourth Proportional to 5,110.21, 7,665.30 and 1,412.43

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Solution

The fourth proportional to 5,110.21, 7,665.30 and 1,412.43 is: 2,118.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.21 : 7,665.30 = 1,412.43 : x
  2. Step 2: Convert to fraction form
    5,110.21/7,665.30 = 1,412.43/x
  3. Step 3: Cross multiply
    5,110.21x = 7,665.30 × 1,412.43
  4. Step 4: Simplify right side
    5,110.21x = 10,826,699.68
  5. Step 5: Solve for x
    x = 10,826,699.68/5,110.21
  6. Step 6: Final answer
    x = 2,118.64

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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.