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Finding the Fourth Proportional to 6,438.41, 8,885.02 and 3,605.84

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Solution

The fourth proportional to 6,438.41, 8,885.02 and 3,605.84 is: 4,976.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.41 : 8,885.02 = 3,605.84 : x
  2. Step 2: Convert to fraction form
    6,438.41/8,885.02 = 3,605.84/x
  3. Step 3: Cross multiply
    6,438.41x = 8,885.02 × 3,605.84
  4. Step 4: Simplify right side
    6,438.41x = 32,037,960.52
  5. Step 5: Solve for x
    x = 32,037,960.52/6,438.41
  6. Step 6: Final answer
    x = 4,976.07

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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.