Home / 1,028.08-1,418.88-585.98

Finding the Fourth Proportional to 1,028.08, 1,418.88 and 585.98

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Solution

The fourth proportional to 1,028.08, 1,418.88 and 585.98 is: 808.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.08 : 1,418.88 = 585.98 : x
  2. Step 2: Convert to fraction form
    1,028.08/1,418.88 = 585.98/x
  3. Step 3: Cross multiply
    1,028.08x = 1,418.88 × 585.98
  4. Step 4: Simplify right side
    1,028.08x = 831,425.28
  5. Step 5: Solve for x
    x = 831,425.28/1,028.08
  6. Step 6: Final answer
    x = 808.72

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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.