Home / 5,424.84-8,138.21-2,653.43

Finding the Fourth Proportional to 5,424.84, 8,138.21 and 2,653.43

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Solution

The fourth proportional to 5,424.84, 8,138.21 and 2,653.43 is: 3,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.84 : 8,138.21 = 2,653.43 : x
  2. Step 2: Convert to fraction form
    5,424.84/8,138.21 = 2,653.43/x
  3. Step 3: Cross multiply
    5,424.84x = 8,138.21 × 2,653.43
  4. Step 4: Simplify right side
    5,424.84x = 21,594,116.60
  5. Step 5: Solve for x
    x = 21,594,116.60/5,424.84
  6. Step 6: Final answer
    x = 3,980.60

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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.