Home / 5,424.49-8,141.36-3,868.31

Finding the Fourth Proportional to 5,424.49, 8,141.36 and 3,868.31

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Solution

The fourth proportional to 5,424.49, 8,141.36 and 3,868.31 is: 5,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.49 : 8,141.36 = 3,868.31 : x
  2. Step 2: Convert to fraction form
    5,424.49/8,141.36 = 3,868.31/x
  3. Step 3: Cross multiply
    5,424.49x = 8,141.36 × 3,868.31
  4. Step 4: Simplify right side
    5,424.49x = 31,493,244.25
  5. Step 5: Solve for x
    x = 31,493,244.25/5,424.49
  6. Step 6: Final answer
    x = 5,805.75

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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.