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Finding the Fourth Proportional to 5,978.63, 8,250.77 and 3,460.85

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Solution

The fourth proportional to 5,978.63, 8,250.77 and 3,460.85 is: 4,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.63 : 8,250.77 = 3,460.85 : x
  2. Step 2: Convert to fraction form
    5,978.63/8,250.77 = 3,460.85/x
  3. Step 3: Cross multiply
    5,978.63x = 8,250.77 × 3,460.85
  4. Step 4: Simplify right side
    5,978.63x = 28,554,660.05
  5. Step 5: Solve for x
    x = 28,554,660.05/5,978.63
  6. Step 6: Final answer
    x = 4,776.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.