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Finding the Fourth Proportional to 3,799.44, 5,698.80 and 1,490.40

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Solution

The fourth proportional to 3,799.44, 5,698.80 and 1,490.40 is: 2,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,799.44 : 5,698.80 = 1,490.40 : x
  2. Step 2: Convert to fraction form
    3,799.44/5,698.80 = 1,490.40/x
  3. Step 3: Cross multiply
    3,799.44x = 5,698.80 × 1,490.40
  4. Step 4: Simplify right side
    3,799.44x = 8,493,491.52
  5. Step 5: Solve for x
    x = 8,493,491.52/3,799.44
  6. Step 6: Final answer
    x = 2,235.46

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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.