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Finding the Fourth Proportional to 5,918.94, 8,872.43 and 3,840.26

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Solution

The fourth proportional to 5,918.94, 8,872.43 and 3,840.26 is: 5,756.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.94 : 8,872.43 = 3,840.26 : x
  2. Step 2: Convert to fraction form
    5,918.94/8,872.43 = 3,840.26/x
  3. Step 3: Cross multiply
    5,918.94x = 8,872.43 × 3,840.26
  4. Step 4: Simplify right side
    5,918.94x = 34,072,374.47
  5. Step 5: Solve for x
    x = 34,072,374.47/5,918.94
  6. Step 6: Final answer
    x = 5,756.50

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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.