Home / 3,656.40-5,485.97-2,176.47

Finding the Fourth Proportional to 3,656.40, 5,485.97 and 2,176.47

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Solution

The fourth proportional to 3,656.40, 5,485.97 and 2,176.47 is: 3,265.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.40 : 5,485.97 = 2,176.47 : x
  2. Step 2: Convert to fraction form
    3,656.40/5,485.97 = 2,176.47/x
  3. Step 3: Cross multiply
    3,656.40x = 5,485.97 × 2,176.47
  4. Step 4: Simplify right side
    3,656.40x = 11,940,034.03
  5. Step 5: Solve for x
    x = 11,940,034.03/3,656.40
  6. Step 6: Final answer
    x = 3,265.52

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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.