Home / 3,638.01-5,455.88-1,172.32

Finding the Fourth Proportional to 3,638.01, 5,455.88 and 1,172.32

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Solution

The fourth proportional to 3,638.01, 5,455.88 and 1,172.32 is: 1,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.01 : 5,455.88 = 1,172.32 : x
  2. Step 2: Convert to fraction form
    3,638.01/5,455.88 = 1,172.32/x
  3. Step 3: Cross multiply
    3,638.01x = 5,455.88 × 1,172.32
  4. Step 4: Simplify right side
    3,638.01x = 6,396,056.12
  5. Step 5: Solve for x
    x = 6,396,056.12/3,638.01
  6. Step 6: Final answer
    x = 1,758.12

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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.