Home / 1,816.03-2,724.09-517.60

Finding the Fourth Proportional to 1,816.03, 2,724.09 and 517.60

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Solution

The fourth proportional to 1,816.03, 2,724.09 and 517.60 is: 776.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.03 : 2,724.09 = 517.60 : x
  2. Step 2: Convert to fraction form
    1,816.03/2,724.09 = 517.60/x
  3. Step 3: Cross multiply
    1,816.03x = 2,724.09 × 517.60
  4. Step 4: Simplify right side
    1,816.03x = 1,409,988.98
  5. Step 5: Solve for x
    x = 1,409,988.98/1,816.03
  6. Step 6: Final answer
    x = 776.41

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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.