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Finding the Fourth Proportional to 6,380.83, 8,809.83 and 4,886.08

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Solution

The fourth proportional to 6,380.83, 8,809.83 and 4,886.08 is: 6,746.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,380.83 : 8,809.83 = 4,886.08 : x
  2. Step 2: Convert to fraction form
    6,380.83/8,809.83 = 4,886.08/x
  3. Step 3: Cross multiply
    6,380.83x = 8,809.83 × 4,886.08
  4. Step 4: Simplify right side
    6,380.83x = 43,045,512.14
  5. Step 5: Solve for x
    x = 43,045,512.14/6,380.83
  6. Step 6: Final answer
    x = 6,746.07

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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.