Home / 6,318.30-8,720.04-3,630.35

Finding the Fourth Proportional to 6,318.30, 8,720.04 and 3,630.35

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Solution

The fourth proportional to 6,318.30, 8,720.04 and 3,630.35 is: 5,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.30 : 8,720.04 = 3,630.35 : x
  2. Step 2: Convert to fraction form
    6,318.30/8,720.04 = 3,630.35/x
  3. Step 3: Cross multiply
    6,318.30x = 8,720.04 × 3,630.35
  4. Step 4: Simplify right side
    6,318.30x = 31,656,797.21
  5. Step 5: Solve for x
    x = 31,656,797.21/6,318.30
  6. Step 6: Final answer
    x = 5,010.33

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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.