Home / 7,147.17-10,724.94-2,764.40

Finding the Fourth Proportional to 7,147.17, 10,724.94 and 2,764.40

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Solution

The fourth proportional to 7,147.17, 10,724.94 and 2,764.40 is: 4,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.17 : 10,724.94 = 2,764.40 : x
  2. Step 2: Convert to fraction form
    7,147.17/10,724.94 = 2,764.40/x
  3. Step 3: Cross multiply
    7,147.17x = 10,724.94 × 2,764.40
  4. Step 4: Simplify right side
    7,147.17x = 29,647,970.51
  5. Step 5: Solve for x
    x = 29,647,970.51/7,147.17
  6. Step 6: Final answer
    x = 4,148.21

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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.