Home / 3,412.19-5,118.24-913.37

Finding the Fourth Proportional to 3,412.19, 5,118.24 and 913.37

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Solution

The fourth proportional to 3,412.19, 5,118.24 and 913.37 is: 1,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.19 : 5,118.24 = 913.37 : x
  2. Step 2: Convert to fraction form
    3,412.19/5,118.24 = 913.37/x
  3. Step 3: Cross multiply
    3,412.19x = 5,118.24 × 913.37
  4. Step 4: Simplify right side
    3,412.19x = 4,674,859.66
  5. Step 5: Solve for x
    x = 4,674,859.66/3,412.19
  6. Step 6: Final answer
    x = 1,370.05

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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.