Home / 3,123.81-4,682.67-2,540.01

Finding the Fourth Proportional to 3,123.81, 4,682.67 and 2,540.01

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Solution

The fourth proportional to 3,123.81, 4,682.67 and 2,540.01 is: 3,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.81 : 4,682.67 = 2,540.01 : x
  2. Step 2: Convert to fraction form
    3,123.81/4,682.67 = 2,540.01/x
  3. Step 3: Cross multiply
    3,123.81x = 4,682.67 × 2,540.01
  4. Step 4: Simplify right side
    3,123.81x = 11,894,028.63
  5. Step 5: Solve for x
    x = 11,894,028.63/3,123.81
  6. Step 6: Final answer
    x = 3,807.54

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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.