Home / 2,058.12-3,078-1,840.08

Finding the Fourth Proportional to 2,058.12, 3,078 and 1,840.08

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Solution

The fourth proportional to 2,058.12, 3,078 and 1,840.08 is: 2,751.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.12 : 3,078 = 1,840.08 : x
  2. Step 2: Convert to fraction form
    2,058.12/3,078 = 1,840.08/x
  3. Step 3: Cross multiply
    2,058.12x = 3,078 × 1,840.08
  4. Step 4: Simplify right side
    2,058.12x = 5,663,766.24
  5. Step 5: Solve for x
    x = 5,663,766.24/2,058.12
  6. Step 6: Final answer
    x = 2,751.91

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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.