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Finding the Fourth Proportional to 5,698.71, 8,555.94 and 3,939.39

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Solution

The fourth proportional to 5,698.71, 8,555.94 and 3,939.39 is: 5,914.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,698.71 : 8,555.94 = 3,939.39 : x
  2. Step 2: Convert to fraction form
    5,698.71/8,555.94 = 3,939.39/x
  3. Step 3: Cross multiply
    5,698.71x = 8,555.94 × 3,939.39
  4. Step 4: Simplify right side
    5,698.71x = 33,705,184.48
  5. Step 5: Solve for x
    x = 33,705,184.48/5,698.71
  6. Step 6: Final answer
    x = 5,914.53

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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.