Home / 3,637.12-5,456.55-1,172.17

Finding the Fourth Proportional to 3,637.12, 5,456.55 and 1,172.17

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Solution

The fourth proportional to 3,637.12, 5,456.55 and 1,172.17 is: 1,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.12 : 5,456.55 = 1,172.17 : x
  2. Step 2: Convert to fraction form
    3,637.12/5,456.55 = 1,172.17/x
  3. Step 3: Cross multiply
    3,637.12x = 5,456.55 × 1,172.17
  4. Step 4: Simplify right side
    3,637.12x = 6,396,004.21
  5. Step 5: Solve for x
    x = 6,396,004.21/3,637.12
  6. Step 6: Final answer
    x = 1,758.54

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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.