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Finding the Fourth Proportional to 6,135.36, 8,451 and 4,806.72

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Solution

The fourth proportional to 6,135.36, 8,451 and 4,806.72 is: 6,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.36 : 8,451 = 4,806.72 : x
  2. Step 2: Convert to fraction form
    6,135.36/8,451 = 4,806.72/x
  3. Step 3: Cross multiply
    6,135.36x = 8,451 × 4,806.72
  4. Step 4: Simplify right side
    6,135.36x = 40,621,590.72
  5. Step 5: Solve for x
    x = 40,621,590.72/6,135.36
  6. Step 6: Final answer
    x = 6,620.90

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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.