Home / 3,137.76-4,707.32-2,678.72

Finding the Fourth Proportional to 3,137.76, 4,707.32 and 2,678.72

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Solution

The fourth proportional to 3,137.76, 4,707.32 and 2,678.72 is: 4,018.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.76 : 4,707.32 = 2,678.72 : x
  2. Step 2: Convert to fraction form
    3,137.76/4,707.32 = 2,678.72/x
  3. Step 3: Cross multiply
    3,137.76x = 4,707.32 × 2,678.72
  4. Step 4: Simplify right side
    3,137.76x = 12,609,592.23
  5. Step 5: Solve for x
    x = 12,609,592.23/3,137.76
  6. Step 6: Final answer
    x = 4,018.66

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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.