Home / 6,318.01-8,718.81-3,485.40

Finding the Fourth Proportional to 6,318.01, 8,718.81 and 3,485.40

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Solution

The fourth proportional to 6,318.01, 8,718.81 and 3,485.40 is: 4,809.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.01 : 8,718.81 = 3,485.40 : x
  2. Step 2: Convert to fraction form
    6,318.01/8,718.81 = 3,485.40/x
  3. Step 3: Cross multiply
    6,318.01x = 8,718.81 × 3,485.40
  4. Step 4: Simplify right side
    6,318.01x = 30,388,540.37
  5. Step 5: Solve for x
    x = 30,388,540.37/6,318.01
  6. Step 6: Final answer
    x = 4,809.83

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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.