Home / 3,040.84-4,196.69-1,861.21

Finding the Fourth Proportional to 3,040.84, 4,196.69 and 1,861.21

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Solution

The fourth proportional to 3,040.84, 4,196.69 and 1,861.21 is: 2,568.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.84 : 4,196.69 = 1,861.21 : x
  2. Step 2: Convert to fraction form
    3,040.84/4,196.69 = 1,861.21/x
  3. Step 3: Cross multiply
    3,040.84x = 4,196.69 × 1,861.21
  4. Step 4: Simplify right side
    3,040.84x = 7,810,921.39
  5. Step 5: Solve for x
    x = 7,810,921.39/3,040.84
  6. Step 6: Final answer
    x = 2,568.67

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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.