Home / 7,780.20-10,736.30-4,796.31

Finding the Fourth Proportional to 7,780.20, 10,736.30 and 4,796.31

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Solution

The fourth proportional to 7,780.20, 10,736.30 and 4,796.31 is: 6,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.20 : 10,736.30 = 4,796.31 : x
  2. Step 2: Convert to fraction form
    7,780.20/10,736.30 = 4,796.31/x
  3. Step 3: Cross multiply
    7,780.20x = 10,736.30 × 4,796.31
  4. Step 4: Simplify right side
    7,780.20x = 51,494,599.07
  5. Step 5: Solve for x
    x = 51,494,599.07/7,780.20
  6. Step 6: Final answer
    x = 6,618.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.