Home / 7,938.58-11,908-3,010.54

Finding the Fourth Proportional to 7,938.58, 11,908 and 3,010.54

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Solution

The fourth proportional to 7,938.58, 11,908 and 3,010.54 is: 4,515.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.58 : 11,908 = 3,010.54 : x
  2. Step 2: Convert to fraction form
    7,938.58/11,908 = 3,010.54/x
  3. Step 3: Cross multiply
    7,938.58x = 11,908 × 3,010.54
  4. Step 4: Simplify right side
    7,938.58x = 35,849,510.32
  5. Step 5: Solve for x
    x = 35,849,510.32/7,938.58
  6. Step 6: Final answer
    x = 4,515.86

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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.