Home / 7,021.78-10,523.58-2,856.94

Finding the Fourth Proportional to 7,021.78, 10,523.58 and 2,856.94

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Solution

The fourth proportional to 7,021.78, 10,523.58 and 2,856.94 is: 4,281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.78 : 10,523.58 = 2,856.94 : x
  2. Step 2: Convert to fraction form
    7,021.78/10,523.58 = 2,856.94/x
  3. Step 3: Cross multiply
    7,021.78x = 10,523.58 × 2,856.94
  4. Step 4: Simplify right side
    7,021.78x = 30,065,236.65
  5. Step 5: Solve for x
    x = 30,065,236.65/7,021.78
  6. Step 6: Final answer
    x = 4,281.71

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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.