Home / 1,874.58-2,587.28-1,078.44

Finding the Fourth Proportional to 1,874.58, 2,587.28 and 1,078.44

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Solution

The fourth proportional to 1,874.58, 2,587.28 and 1,078.44 is: 1,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.58 : 2,587.28 = 1,078.44 : x
  2. Step 2: Convert to fraction form
    1,874.58/2,587.28 = 1,078.44/x
  3. Step 3: Cross multiply
    1,874.58x = 2,587.28 × 1,078.44
  4. Step 4: Simplify right side
    1,874.58x = 2,790,228.94
  5. Step 5: Solve for x
    x = 2,790,228.94/1,874.58
  6. Step 6: Final answer
    x = 1,488.46

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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.