Home / 7,143.40-10,718.16-2,763.94

Finding the Fourth Proportional to 7,143.40, 10,718.16 and 2,763.94

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Solution

The fourth proportional to 7,143.40, 10,718.16 and 2,763.94 is: 4,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.40 : 10,718.16 = 2,763.94 : x
  2. Step 2: Convert to fraction form
    7,143.40/10,718.16 = 2,763.94/x
  3. Step 3: Cross multiply
    7,143.40x = 10,718.16 × 2,763.94
  4. Step 4: Simplify right side
    7,143.40x = 29,624,351.15
  5. Step 5: Solve for x
    x = 29,624,351.15/7,143.40
  6. Step 6: Final answer
    x = 4,147.09

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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.