Home / 2,638.04-3,958.88-1,176.39

Finding the Fourth Proportional to 2,638.04, 3,958.88 and 1,176.39

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Solution

The fourth proportional to 2,638.04, 3,958.88 and 1,176.39 is: 1,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.04 : 3,958.88 = 1,176.39 : x
  2. Step 2: Convert to fraction form
    2,638.04/3,958.88 = 1,176.39/x
  3. Step 3: Cross multiply
    2,638.04x = 3,958.88 × 1,176.39
  4. Step 4: Simplify right side
    2,638.04x = 4,657,180.96
  5. Step 5: Solve for x
    x = 4,657,180.96/2,638.04
  6. Step 6: Final answer
    x = 1,765.40

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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.