Home / 2,813.21-4,219.92-1,058.03

Finding the Fourth Proportional to 2,813.21, 4,219.92 and 1,058.03

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Solution

The fourth proportional to 2,813.21, 4,219.92 and 1,058.03 is: 1,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.21 : 4,219.92 = 1,058.03 : x
  2. Step 2: Convert to fraction form
    2,813.21/4,219.92 = 1,058.03/x
  3. Step 3: Cross multiply
    2,813.21x = 4,219.92 × 1,058.03
  4. Step 4: Simplify right side
    2,813.21x = 4,464,780.86
  5. Step 5: Solve for x
    x = 4,464,780.86/2,813.21
  6. Step 6: Final answer
    x = 1,587.08

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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.