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Finding the Fourth Proportional to 3,499.71, 5,238.64 and 2,616.99

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Solution

The fourth proportional to 3,499.71, 5,238.64 and 2,616.99 is: 3,917.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,499.71 : 5,238.64 = 2,616.99 : x
  2. Step 2: Convert to fraction form
    3,499.71/5,238.64 = 2,616.99/x
  3. Step 3: Cross multiply
    3,499.71x = 5,238.64 × 2,616.99
  4. Step 4: Simplify right side
    3,499.71x = 13,709,468.49
  5. Step 5: Solve for x
    x = 13,709,468.49/3,499.71
  6. Step 6: Final answer
    x = 3,917.32

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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.