Home / 6,438.46-8,885.19-3,785.98

Finding the Fourth Proportional to 6,438.46, 8,885.19 and 3,785.98

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Solution

The fourth proportional to 6,438.46, 8,885.19 and 3,785.98 is: 5,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.46 : 8,885.19 = 3,785.98 : x
  2. Step 2: Convert to fraction form
    6,438.46/8,885.19 = 3,785.98/x
  3. Step 3: Cross multiply
    6,438.46x = 8,885.19 × 3,785.98
  4. Step 4: Simplify right side
    6,438.46x = 33,639,151.64
  5. Step 5: Solve for x
    x = 33,639,151.64/6,438.46
  6. Step 6: Final answer
    x = 5,224.72

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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.