Home / 3,199.50-4,802.24-1,640.64

Finding the Fourth Proportional to 3,199.50, 4,802.24 and 1,640.64

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Solution

The fourth proportional to 3,199.50, 4,802.24 and 1,640.64 is: 2,462.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.50 : 4,802.24 = 1,640.64 : x
  2. Step 2: Convert to fraction form
    3,199.50/4,802.24 = 1,640.64/x
  3. Step 3: Cross multiply
    3,199.50x = 4,802.24 × 1,640.64
  4. Step 4: Simplify right side
    3,199.50x = 7,878,747.03
  5. Step 5: Solve for x
    x = 7,878,747.03/3,199.50
  6. Step 6: Final answer
    x = 2,462.49

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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.