Home / 3,998.47-6,002.91-2,688.09

Finding the Fourth Proportional to 3,998.47, 6,002.91 and 2,688.09

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Solution

The fourth proportional to 3,998.47, 6,002.91 and 2,688.09 is: 4,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.47 : 6,002.91 = 2,688.09 : x
  2. Step 2: Convert to fraction form
    3,998.47/6,002.91 = 2,688.09/x
  3. Step 3: Cross multiply
    3,998.47x = 6,002.91 × 2,688.09
  4. Step 4: Simplify right side
    3,998.47x = 16,136,362.34
  5. Step 5: Solve for x
    x = 16,136,362.34/3,998.47
  6. Step 6: Final answer
    x = 4,035.64

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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.