Home / 7,437.75-11,156.63-2,820.75

Finding the Fourth Proportional to 7,437.75, 11,156.63 and 2,820.75

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Solution

The fourth proportional to 7,437.75, 11,156.63 and 2,820.75 is: 4,231.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,437.75 : 11,156.63 = 2,820.75 : x
  2. Step 2: Convert to fraction form
    7,437.75/11,156.63 = 2,820.75/x
  3. Step 3: Cross multiply
    7,437.75x = 11,156.63 × 2,820.75
  4. Step 4: Simplify right side
    7,437.75x = 31,470,049.97
  5. Step 5: Solve for x
    x = 31,470,049.97/7,437.75
  6. Step 6: Final answer
    x = 4,231.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.