Home / 5,389.21-7,436.26-2,998.77

Finding the Fourth Proportional to 5,389.21, 7,436.26 and 2,998.77

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Solution

The fourth proportional to 5,389.21, 7,436.26 and 2,998.77 is: 4,137.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.21 : 7,436.26 = 2,998.77 : x
  2. Step 2: Convert to fraction form
    5,389.21/7,436.26 = 2,998.77/x
  3. Step 3: Cross multiply
    5,389.21x = 7,436.26 × 2,998.77
  4. Step 4: Simplify right side
    5,389.21x = 22,299,634.22
  5. Step 5: Solve for x
    x = 22,299,634.22/5,389.21
  6. Step 6: Final answer
    x = 4,137.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.