Home / 7,891.22-11,830.96-4,770.60

Finding the Fourth Proportional to 7,891.22, 11,830.96 and 4,770.60

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Solution

The fourth proportional to 7,891.22, 11,830.96 and 4,770.60 is: 7,152.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.22 : 11,830.96 = 4,770.60 : x
  2. Step 2: Convert to fraction form
    7,891.22/11,830.96 = 4,770.60/x
  3. Step 3: Cross multiply
    7,891.22x = 11,830.96 × 4,770.60
  4. Step 4: Simplify right side
    7,891.22x = 56,440,739.37
  5. Step 5: Solve for x
    x = 56,440,739.37/7,891.22
  6. Step 6: Final answer
    x = 7,152.34

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1.5x scale

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.