Home / 3,412.30-5,114.69-3,135.51

Finding the Fourth Proportional to 3,412.30, 5,114.69 and 3,135.51

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Solution

The fourth proportional to 3,412.30, 5,114.69 and 3,135.51 is: 4,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.30 : 5,114.69 = 3,135.51 : x
  2. Step 2: Convert to fraction form
    3,412.30/5,114.69 = 3,135.51/x
  3. Step 3: Cross multiply
    3,412.30x = 5,114.69 × 3,135.51
  4. Step 4: Simplify right side
    3,412.30x = 16,037,161.64
  5. Step 5: Solve for x
    x = 16,037,161.64/3,412.30
  6. Step 6: Final answer
    x = 4,699.81

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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.