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Finding the Fourth Proportional to 6,392.89, 8,819.08 and 5,507.16

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Solution

The fourth proportional to 6,392.89, 8,819.08 and 5,507.16 is: 7,597.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.89 : 8,819.08 = 5,507.16 : x
  2. Step 2: Convert to fraction form
    6,392.89/8,819.08 = 5,507.16/x
  3. Step 3: Cross multiply
    6,392.89x = 8,819.08 × 5,507.16
  4. Step 4: Simplify right side
    6,392.89x = 48,568,037.77
  5. Step 5: Solve for x
    x = 48,568,037.77/6,392.89
  6. Step 6: Final answer
    x = 7,597.19

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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.