Home / 7,770.70-11,647.02-4,441.28

Finding the Fourth Proportional to 7,770.70, 11,647.02 and 4,441.28

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Solution

The fourth proportional to 7,770.70, 11,647.02 and 4,441.28 is: 6,656.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.70 : 11,647.02 = 4,441.28 : x
  2. Step 2: Convert to fraction form
    7,770.70/11,647.02 = 4,441.28/x
  3. Step 3: Cross multiply
    7,770.70x = 11,647.02 × 4,441.28
  4. Step 4: Simplify right side
    7,770.70x = 51,727,676.99
  5. Step 5: Solve for x
    x = 51,727,676.99/7,770.70
  6. Step 6: Final answer
    x = 6,656.76

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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.