Home / 3,682.07-5,081.96-2,420.90

Finding the Fourth Proportional to 3,682.07, 5,081.96 and 2,420.90

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Solution

The fourth proportional to 3,682.07, 5,081.96 and 2,420.90 is: 3,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,682.07 : 5,081.96 = 2,420.90 : x
  2. Step 2: Convert to fraction form
    3,682.07/5,081.96 = 2,420.90/x
  3. Step 3: Cross multiply
    3,682.07x = 5,081.96 × 2,420.90
  4. Step 4: Simplify right side
    3,682.07x = 12,302,916.96
  5. Step 5: Solve for x
    x = 12,302,916.96/3,682.07
  6. Step 6: Final answer
    x = 3,341.30

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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.