Home / 4,120.65-6,179.76-2,271.42

Finding the Fourth Proportional to 4,120.65, 6,179.76 and 2,271.42

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Solution

The fourth proportional to 4,120.65, 6,179.76 and 2,271.42 is: 3,406.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.65 : 6,179.76 = 2,271.42 : x
  2. Step 2: Convert to fraction form
    4,120.65/6,179.76 = 2,271.42/x
  3. Step 3: Cross multiply
    4,120.65x = 6,179.76 × 2,271.42
  4. Step 4: Simplify right side
    4,120.65x = 14,036,830.46
  5. Step 5: Solve for x
    x = 14,036,830.46/4,120.65
  6. Step 6: Final answer
    x = 3,406.46

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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.