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Finding the Fourth Proportional to 4,899.81, 7,340.44 and 3,798.78

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Solution

The fourth proportional to 4,899.81, 7,340.44 and 3,798.78 is: 5,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.81 : 7,340.44 = 3,798.78 : x
  2. Step 2: Convert to fraction form
    4,899.81/7,340.44 = 3,798.78/x
  3. Step 3: Cross multiply
    4,899.81x = 7,340.44 × 3,798.78
  4. Step 4: Simplify right side
    4,899.81x = 27,884,716.66
  5. Step 5: Solve for x
    x = 27,884,716.66/4,899.81
  6. Step 6: Final answer
    x = 5,690.98

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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.