Home / 3,412.81-5,119.18-1,104.31

Finding the Fourth Proportional to 3,412.81, 5,119.18 and 1,104.31

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Solution

The fourth proportional to 3,412.81, 5,119.18 and 1,104.31 is: 1,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.81 : 5,119.18 = 1,104.31 : x
  2. Step 2: Convert to fraction form
    3,412.81/5,119.18 = 1,104.31/x
  3. Step 3: Cross multiply
    3,412.81x = 5,119.18 × 1,104.31
  4. Step 4: Simplify right side
    3,412.81x = 5,653,161.67
  5. Step 5: Solve for x
    x = 5,653,161.67/3,412.81
  6. Step 6: Final answer
    x = 1,656.45

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1.5x scale

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.