Home / 6,438.96-8,885.12-3,606.17

Finding the Fourth Proportional to 6,438.96, 8,885.12 and 3,606.17

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Solution

The fourth proportional to 6,438.96, 8,885.12 and 3,606.17 is: 4,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.96 : 8,885.12 = 3,606.17 : x
  2. Step 2: Convert to fraction form
    6,438.96/8,885.12 = 3,606.17/x
  3. Step 3: Cross multiply
    6,438.96x = 8,885.12 × 3,606.17
  4. Step 4: Simplify right side
    6,438.96x = 32,041,190.73
  5. Step 5: Solve for x
    x = 32,041,190.73/6,438.96
  6. Step 6: Final answer
    x = 4,976.14

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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.