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Finding the Fourth Proportional to 7,271.78, 10,891.07 and 4,344.08

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Solution

The fourth proportional to 7,271.78, 10,891.07 and 4,344.08 is: 6,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.78 : 10,891.07 = 4,344.08 : x
  2. Step 2: Convert to fraction form
    7,271.78/10,891.07 = 4,344.08/x
  3. Step 3: Cross multiply
    7,271.78x = 10,891.07 × 4,344.08
  4. Step 4: Simplify right side
    7,271.78x = 47,311,657.65
  5. Step 5: Solve for x
    x = 47,311,657.65/7,271.78
  6. Step 6: Final answer
    x = 6,506.20

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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.