Home / 1,587.58-2,191.32-1,028.03

Finding the Fourth Proportional to 1,587.58, 2,191.32 and 1,028.03

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Solution

The fourth proportional to 1,587.58, 2,191.32 and 1,028.03 is: 1,418.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.58 : 2,191.32 = 1,028.03 : x
  2. Step 2: Convert to fraction form
    1,587.58/2,191.32 = 1,028.03/x
  3. Step 3: Cross multiply
    1,587.58x = 2,191.32 × 1,028.03
  4. Step 4: Simplify right side
    1,587.58x = 2,252,731.74
  5. Step 5: Solve for x
    x = 2,252,731.74/1,587.58
  6. Step 6: Final answer
    x = 1,418.97

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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.