Home / 7,647.82-11,464.70-2,970.95

Finding the Fourth Proportional to 7,647.82, 11,464.70 and 2,970.95

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Solution

The fourth proportional to 7,647.82, 11,464.70 and 2,970.95 is: 4,453.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.82 : 11,464.70 = 2,970.95 : x
  2. Step 2: Convert to fraction form
    7,647.82/11,464.70 = 2,970.95/x
  3. Step 3: Cross multiply
    7,647.82x = 11,464.70 × 2,970.95
  4. Step 4: Simplify right side
    7,647.82x = 34,060,978.29
  5. Step 5: Solve for x
    x = 34,060,978.29/7,647.82
  6. Step 6: Final answer
    x = 4,453.69

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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.