Home / 1,816.05-2,724.09-517.53

Finding the Fourth Proportional to 1,816.05, 2,724.09 and 517.53

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Solution

The fourth proportional to 1,816.05, 2,724.09 and 517.53 is: 776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.05 : 2,724.09 = 517.53 : x
  2. Step 2: Convert to fraction form
    1,816.05/2,724.09 = 517.53/x
  3. Step 3: Cross multiply
    1,816.05x = 2,724.09 × 517.53
  4. Step 4: Simplify right side
    1,816.05x = 1,409,798.30
  5. Step 5: Solve for x
    x = 1,409,798.30/1,816.05
  6. Step 6: Final answer
    x = 776.30

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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.