Home / 3,938.34-5,435.40-2,260.02

Finding the Fourth Proportional to 3,938.34, 5,435.40 and 2,260.02

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Solution

The fourth proportional to 3,938.34, 5,435.40 and 2,260.02 is: 3,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.34 : 5,435.40 = 2,260.02 : x
  2. Step 2: Convert to fraction form
    3,938.34/5,435.40 = 2,260.02/x
  3. Step 3: Cross multiply
    3,938.34x = 5,435.40 × 2,260.02
  4. Step 4: Simplify right side
    3,938.34x = 12,284,112.71
  5. Step 5: Solve for x
    x = 12,284,112.71/3,938.34
  6. Step 6: Final answer
    x = 3,119.11

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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.