Home / 6,845.70-9,446.86-3,861.49

Finding the Fourth Proportional to 6,845.70, 9,446.86 and 3,861.49

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Solution

The fourth proportional to 6,845.70, 9,446.86 and 3,861.49 is: 5,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,845.70 : 9,446.86 = 3,861.49 : x
  2. Step 2: Convert to fraction form
    6,845.70/9,446.86 = 3,861.49/x
  3. Step 3: Cross multiply
    6,845.70x = 9,446.86 × 3,861.49
  4. Step 4: Simplify right side
    6,845.70x = 36,478,955.42
  5. Step 5: Solve for x
    x = 36,478,955.42/6,845.70
  6. Step 6: Final answer
    x = 5,328.74

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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.