Home / 7,145.70-10,718.97-2,763.18

Finding the Fourth Proportional to 7,145.70, 10,718.97 and 2,763.18

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Solution

The fourth proportional to 7,145.70, 10,718.97 and 2,763.18 is: 4,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.70 : 10,718.97 = 2,763.18 : x
  2. Step 2: Convert to fraction form
    7,145.70/10,718.97 = 2,763.18/x
  3. Step 3: Cross multiply
    7,145.70x = 10,718.97 × 2,763.18
  4. Step 4: Simplify right side
    7,145.70x = 29,618,443.52
  5. Step 5: Solve for x
    x = 29,618,443.52/7,145.70
  6. Step 6: Final answer
    x = 4,144.93

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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.