Home / 7,289.70-10,931.85-2,608.44

Finding the Fourth Proportional to 7,289.70, 10,931.85 and 2,608.44

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Solution

The fourth proportional to 7,289.70, 10,931.85 and 2,608.44 is: 3,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.70 : 10,931.85 = 2,608.44 : x
  2. Step 2: Convert to fraction form
    7,289.70/10,931.85 = 2,608.44/x
  3. Step 3: Cross multiply
    7,289.70x = 10,931.85 × 2,608.44
  4. Step 4: Simplify right side
    7,289.70x = 28,515,074.81
  5. Step 5: Solve for x
    x = 28,515,074.81/7,289.70
  6. Step 6: Final answer
    x = 3,911.69

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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.