Home / 1,907.20-2,860.90-608.56

Finding the Fourth Proportional to 1,907.20, 2,860.90 and 608.56

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Solution

The fourth proportional to 1,907.20, 2,860.90 and 608.56 is: 912.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.20 : 2,860.90 = 608.56 : x
  2. Step 2: Convert to fraction form
    1,907.20/2,860.90 = 608.56/x
  3. Step 3: Cross multiply
    1,907.20x = 2,860.90 × 608.56
  4. Step 4: Simplify right side
    1,907.20x = 1,741,033.41
  5. Step 5: Solve for x
    x = 1,741,033.41/1,907.20
  6. Step 6: Final answer
    x = 912.88

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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.