Home / 7,145.28-10,718.46-2,762.37

Finding the Fourth Proportional to 7,145.28, 10,718.46 and 2,762.37

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Solution

The fourth proportional to 7,145.28, 10,718.46 and 2,762.37 is: 4,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.28 : 10,718.46 = 2,762.37 : x
  2. Step 2: Convert to fraction form
    7,145.28/10,718.46 = 2,762.37/x
  3. Step 3: Cross multiply
    7,145.28x = 10,718.46 × 2,762.37
  4. Step 4: Simplify right side
    7,145.28x = 29,608,352.35
  5. Step 5: Solve for x
    x = 29,608,352.35/7,145.28
  6. Step 6: Final answer
    x = 4,143.76

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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.