Home / 1,816.07-2,724.15-517.55

Finding the Fourth Proportional to 1,816.07, 2,724.15 and 517.55

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Solution

The fourth proportional to 1,816.07, 2,724.15 and 517.55 is: 776.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.07 : 2,724.15 = 517.55 : x
  2. Step 2: Convert to fraction form
    1,816.07/2,724.15 = 517.55/x
  3. Step 3: Cross multiply
    1,816.07x = 2,724.15 × 517.55
  4. Step 4: Simplify right side
    1,816.07x = 1,409,883.83
  5. Step 5: Solve for x
    x = 1,409,883.83/1,816.07
  6. Step 6: Final answer
    x = 776.34

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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.