Home / 1,878.38-2,818.20-1,058.26

Finding the Fourth Proportional to 1,878.38, 2,818.20 and 1,058.26

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Solution

The fourth proportional to 1,878.38, 2,818.20 and 1,058.26 is: 1,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.38 : 2,818.20 = 1,058.26 : x
  2. Step 2: Convert to fraction form
    1,878.38/2,818.20 = 1,058.26/x
  3. Step 3: Cross multiply
    1,878.38x = 2,818.20 × 1,058.26
  4. Step 4: Simplify right side
    1,878.38x = 2,982,388.33
  5. Step 5: Solve for x
    x = 2,982,388.33/1,878.38
  6. Step 6: Final answer
    x = 1,587.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.