Home / 3,997.47-5,516.81-2,319.45

Finding the Fourth Proportional to 3,997.47, 5,516.81 and 2,319.45

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Solution

The fourth proportional to 3,997.47, 5,516.81 and 2,319.45 is: 3,201.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.47 : 5,516.81 = 2,319.45 : x
  2. Step 2: Convert to fraction form
    3,997.47/5,516.81 = 2,319.45/x
  3. Step 3: Cross multiply
    3,997.47x = 5,516.81 × 2,319.45
  4. Step 4: Simplify right side
    3,997.47x = 12,795,953.36
  5. Step 5: Solve for x
    x = 12,795,953.36/3,997.47
  6. Step 6: Final answer
    x = 3,201.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.