Home / 7,000.75-10,505.85-2,618.41

Finding the Fourth Proportional to 7,000.75, 10,505.85 and 2,618.41

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Solution

The fourth proportional to 7,000.75, 10,505.85 and 2,618.41 is: 3,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000.75 : 10,505.85 = 2,618.41 : x
  2. Step 2: Convert to fraction form
    7,000.75/10,505.85 = 2,618.41/x
  3. Step 3: Cross multiply
    7,000.75x = 10,505.85 × 2,618.41
  4. Step 4: Simplify right side
    7,000.75x = 27,508,622.70
  5. Step 5: Solve for x
    x = 27,508,622.70/7,000.75
  6. Step 6: Final answer
    x = 3,929.38

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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.