Home / 4,271.36-6,399.84-2,081.12

Finding the Fourth Proportional to 4,271.36, 6,399.84 and 2,081.12

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Solution

The fourth proportional to 4,271.36, 6,399.84 and 2,081.12 is: 3,118.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,271.36 : 6,399.84 = 2,081.12 : x
  2. Step 2: Convert to fraction form
    4,271.36/6,399.84 = 2,081.12/x
  3. Step 3: Cross multiply
    4,271.36x = 6,399.84 × 2,081.12
  4. Step 4: Simplify right side
    4,271.36x = 13,318,835.02
  5. Step 5: Solve for x
    x = 13,318,835.02/4,271.36
  6. Step 6: Final answer
    x = 3,118.17

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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.