Home / 6,984.41-9,638.24-3,840.57

Finding the Fourth Proportional to 6,984.41, 9,638.24 and 3,840.57

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Solution

The fourth proportional to 6,984.41, 9,638.24 and 3,840.57 is: 5,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.41 : 9,638.24 = 3,840.57 : x
  2. Step 2: Convert to fraction form
    6,984.41/9,638.24 = 3,840.57/x
  3. Step 3: Cross multiply
    6,984.41x = 9,638.24 × 3,840.57
  4. Step 4: Simplify right side
    6,984.41x = 37,016,316.19
  5. Step 5: Solve for x
    x = 37,016,316.19/6,984.41
  6. Step 6: Final answer
    x = 5,299.85

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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.