Home / 5,424.84-8,137.99-1,914.02

Finding the Fourth Proportional to 5,424.84, 8,137.99 and 1,914.02

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Solution

The fourth proportional to 5,424.84, 8,137.99 and 1,914.02 is: 2,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.84 : 8,137.99 = 1,914.02 : x
  2. Step 2: Convert to fraction form
    5,424.84/8,137.99 = 1,914.02/x
  3. Step 3: Cross multiply
    5,424.84x = 8,137.99 × 1,914.02
  4. Step 4: Simplify right side
    5,424.84x = 15,576,275.62
  5. Step 5: Solve for x
    x = 15,576,275.62/5,424.84
  6. Step 6: Final answer
    x = 2,871.29

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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.