Home / 5,414.40-8,127.36-5,137.92

Finding the Fourth Proportional to 5,414.40, 8,127.36 and 5,137.92

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Solution

The fourth proportional to 5,414.40, 8,127.36 and 5,137.92 is: 7,712.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.40 : 8,127.36 = 5,137.92 : x
  2. Step 2: Convert to fraction form
    5,414.40/8,127.36 = 5,137.92/x
  3. Step 3: Cross multiply
    5,414.40x = 8,127.36 × 5,137.92
  4. Step 4: Simplify right side
    5,414.40x = 41,757,725.49
  5. Step 5: Solve for x
    x = 41,757,725.49/5,414.40
  6. Step 6: Final answer
    x = 7,712.35

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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.