Home / 5,245.70-7,861.60-1,955.48

Finding the Fourth Proportional to 5,245.70, 7,861.60 and 1,955.48

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Solution

The fourth proportional to 5,245.70, 7,861.60 and 1,955.48 is: 2,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.70 : 7,861.60 = 1,955.48 : x
  2. Step 2: Convert to fraction form
    5,245.70/7,861.60 = 1,955.48/x
  3. Step 3: Cross multiply
    5,245.70x = 7,861.60 × 1,955.48
  4. Step 4: Simplify right side
    5,245.70x = 15,373,191.79
  5. Step 5: Solve for x
    x = 15,373,191.79/5,245.70
  6. Step 6: Final answer
    x = 2,930.63

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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.