Home / 4,187.30-5,778.43-2,418.87

Finding the Fourth Proportional to 4,187.30, 5,778.43 and 2,418.87

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Solution

The fourth proportional to 4,187.30, 5,778.43 and 2,418.87 is: 3,338.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.30 : 5,778.43 = 2,418.87 : x
  2. Step 2: Convert to fraction form
    4,187.30/5,778.43 = 2,418.87/x
  3. Step 3: Cross multiply
    4,187.30x = 5,778.43 × 2,418.87
  4. Step 4: Simplify right side
    4,187.30x = 13,977,270.97
  5. Step 5: Solve for x
    x = 13,977,270.97/4,187.30
  6. Step 6: Final answer
    x = 3,338.02

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1.5x scale

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.