Home / 1,028.15-1,418.87-586.03

Finding the Fourth Proportional to 1,028.15, 1,418.87 and 586.03

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Solution

The fourth proportional to 1,028.15, 1,418.87 and 586.03 is: 808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.15 : 1,418.87 = 586.03 : x
  2. Step 2: Convert to fraction form
    1,028.15/1,418.87 = 586.03/x
  3. Step 3: Cross multiply
    1,028.15x = 1,418.87 × 586.03
  4. Step 4: Simplify right side
    1,028.15x = 831,500.39
  5. Step 5: Solve for x
    x = 831,500.39/1,028.15
  6. Step 6: Final answer
    x = 808.73

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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.