Home / 2,907.71-4,354.76-2,125.74

Finding the Fourth Proportional to 2,907.71, 4,354.76 and 2,125.74

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Solution

The fourth proportional to 2,907.71, 4,354.76 and 2,125.74 is: 3,183.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.71 : 4,354.76 = 2,125.74 : x
  2. Step 2: Convert to fraction form
    2,907.71/4,354.76 = 2,125.74/x
  3. Step 3: Cross multiply
    2,907.71x = 4,354.76 × 2,125.74
  4. Step 4: Simplify right side
    2,907.71x = 9,257,076.89
  5. Step 5: Solve for x
    x = 9,257,076.89/2,907.71
  6. Step 6: Final answer
    x = 3,183.64

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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.