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Finding the Fourth Proportional to 8,048.78, 12,074.80 and 2,858.30

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Solution

The fourth proportional to 8,048.78, 12,074.80 and 2,858.30 is: 4,288.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,048.78 : 12,074.80 = 2,858.30 : x
  2. Step 2: Convert to fraction form
    8,048.78/12,074.80 = 2,858.30/x
  3. Step 3: Cross multiply
    8,048.78x = 12,074.80 × 2,858.30
  4. Step 4: Simplify right side
    8,048.78x = 34,513,400.84
  5. Step 5: Solve for x
    x = 34,513,400.84/8,048.78
  6. Step 6: Final answer
    x = 4,288.03

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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.