Home / 1,825.20-2,518.50-1,028.55

Finding the Fourth Proportional to 1,825.20, 2,518.50 and 1,028.55

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Solution

The fourth proportional to 1,825.20, 2,518.50 and 1,028.55 is: 1,419.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.20 : 2,518.50 = 1,028.55 : x
  2. Step 2: Convert to fraction form
    1,825.20/2,518.50 = 1,028.55/x
  3. Step 3: Cross multiply
    1,825.20x = 2,518.50 × 1,028.55
  4. Step 4: Simplify right side
    1,825.20x = 2,590,403.18
  5. Step 5: Solve for x
    x = 2,590,403.18/1,825.20
  6. Step 6: Final answer
    x = 1,419.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.