Home / 2,638.08-3,938.40-2,546.64

Finding the Fourth Proportional to 2,638.08, 3,938.40 and 2,546.64

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Solution

The fourth proportional to 2,638.08, 3,938.40 and 2,546.64 is: 3,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.08 : 3,938.40 = 2,546.64 : x
  2. Step 2: Convert to fraction form
    2,638.08/3,938.40 = 2,546.64/x
  3. Step 3: Cross multiply
    2,638.08x = 3,938.40 × 2,546.64
  4. Step 4: Simplify right side
    2,638.08x = 10,029,686.98
  5. Step 5: Solve for x
    x = 10,029,686.98/2,638.08
  6. Step 6: Final answer
    x = 3,801.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.