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Finding the Fourth Proportional to 4,899.42, 7,329.06 and 4,078.80

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Solution

The fourth proportional to 4,899.42, 7,329.06 and 4,078.80 is: 6,101.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.42 : 7,329.06 = 4,078.80 : x
  2. Step 2: Convert to fraction form
    4,899.42/7,329.06 = 4,078.80/x
  3. Step 3: Cross multiply
    4,899.42x = 7,329.06 × 4,078.80
  4. Step 4: Simplify right side
    4,899.42x = 29,893,769.93
  5. Step 5: Solve for x
    x = 29,893,769.93/4,899.42
  6. Step 6: Final answer
    x = 6,101.49

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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.