Home / 1,628.24-2,442.73-518.00

Finding the Fourth Proportional to 1,628.24, 2,442.73 and 518.00

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Solution

The fourth proportional to 1,628.24, 2,442.73 and 518.00 is: 777.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.24 : 2,442.73 = 518.00 : x
  2. Step 2: Convert to fraction form
    1,628.24/2,442.73 = 518.00/x
  3. Step 3: Cross multiply
    1,628.24x = 2,442.73 × 518.00
  4. Step 4: Simplify right side
    1,628.24x = 1,265,334.61
  5. Step 5: Solve for x
    x = 1,265,334.61/1,628.24
  6. Step 6: Final answer
    x = 777.12

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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.