Home / 3,401.12-5,101.68-936.32

Finding the Fourth Proportional to 3,401.12, 5,101.68 and 936.32

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Solution

The fourth proportional to 3,401.12, 5,101.68 and 936.32 is: 1,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.12 : 5,101.68 = 936.32 : x
  2. Step 2: Convert to fraction form
    3,401.12/5,101.68 = 936.32/x
  3. Step 3: Cross multiply
    3,401.12x = 5,101.68 × 936.32
  4. Step 4: Simplify right side
    3,401.12x = 4,776,779.51
  5. Step 5: Solve for x
    x = 4,776,779.51/3,401.12
  6. Step 6: Final answer
    x = 1,404.47

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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.