Home / 4,311.75-6,479.93-2,122.01

Finding the Fourth Proportional to 4,311.75, 6,479.93 and 2,122.01

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Solution

The fourth proportional to 4,311.75, 6,479.93 and 2,122.01 is: 3,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.75 : 6,479.93 = 2,122.01 : x
  2. Step 2: Convert to fraction form
    4,311.75/6,479.93 = 2,122.01/x
  3. Step 3: Cross multiply
    4,311.75x = 6,479.93 × 2,122.01
  4. Step 4: Simplify right side
    4,311.75x = 13,750,509.91
  5. Step 5: Solve for x
    x = 13,750,509.91/4,311.75
  6. Step 6: Final answer
    x = 3,189.08

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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.