Home / 6,143.80-9,210.30-3,679.60

Finding the Fourth Proportional to 6,143.80, 9,210.30 and 3,679.60

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Solution

The fourth proportional to 6,143.80, 9,210.30 and 3,679.60 is: 5,516.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.80 : 9,210.30 = 3,679.60 : x
  2. Step 2: Convert to fraction form
    6,143.80/9,210.30 = 3,679.60/x
  3. Step 3: Cross multiply
    6,143.80x = 9,210.30 × 3,679.60
  4. Step 4: Simplify right side
    6,143.80x = 33,890,219.88
  5. Step 5: Solve for x
    x = 33,890,219.88/6,143.80
  6. Step 6: Final answer
    x = 5,516.17

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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.