Home / 6,318.20-9,476.40-2,158.40

Finding the Fourth Proportional to 6,318.20, 9,476.40 and 2,158.40

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Solution

The fourth proportional to 6,318.20, 9,476.40 and 2,158.40 is: 3,237.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.20 : 9,476.40 = 2,158.40 : x
  2. Step 2: Convert to fraction form
    6,318.20/9,476.40 = 2,158.40/x
  3. Step 3: Cross multiply
    6,318.20x = 9,476.40 × 2,158.40
  4. Step 4: Simplify right side
    6,318.20x = 20,453,861.76
  5. Step 5: Solve for x
    x = 20,453,861.76/6,318.20
  6. Step 6: Final answer
    x = 3,237.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.