Home / 3,638.32-5,455.96-1,172.48

Finding the Fourth Proportional to 3,638.32, 5,455.96 and 1,172.48

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Solution

The fourth proportional to 3,638.32, 5,455.96 and 1,172.48 is: 1,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.32 : 5,455.96 = 1,172.48 : x
  2. Step 2: Convert to fraction form
    3,638.32/5,455.96 = 1,172.48/x
  3. Step 3: Cross multiply
    3,638.32x = 5,455.96 × 1,172.48
  4. Step 4: Simplify right side
    3,638.32x = 6,396,973.77
  5. Step 5: Solve for x
    x = 6,396,973.77/3,638.32
  6. Step 6: Final answer
    x = 1,758.22

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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.