Home / 3,558.61-4,912.68-2,440

Finding the Fourth Proportional to 3,558.61, 4,912.68 and 2,440

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Solution

The fourth proportional to 3,558.61, 4,912.68 and 2,440 is: 3,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.61 : 4,912.68 = 2,440 : x
  2. Step 2: Convert to fraction form
    3,558.61/4,912.68 = 2,440/x
  3. Step 3: Cross multiply
    3,558.61x = 4,912.68 × 2,440
  4. Step 4: Simplify right side
    3,558.61x = 11,986,939.20
  5. Step 5: Solve for x
    x = 11,986,939.20/3,558.61
  6. Step 6: Final answer
    x = 3,368.43

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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.