Home / 1,816.13-2,724.22-517.63

Finding the Fourth Proportional to 1,816.13, 2,724.22 and 517.63

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Solution

The fourth proportional to 1,816.13, 2,724.22 and 517.63 is: 776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.13 : 2,724.22 = 517.63 : x
  2. Step 2: Convert to fraction form
    1,816.13/2,724.22 = 517.63/x
  3. Step 3: Cross multiply
    1,816.13x = 2,724.22 × 517.63
  4. Step 4: Simplify right side
    1,816.13x = 1,410,131.84
  5. Step 5: Solve for x
    x = 1,410,131.84/1,816.13
  6. Step 6: Final answer
    x = 776.45

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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.