Home / 3,392.19-5,089.98-1,638.68

Finding the Fourth Proportional to 3,392.19, 5,089.98 and 1,638.68

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Solution

The fourth proportional to 3,392.19, 5,089.98 and 1,638.68 is: 2,458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.19 : 5,089.98 = 1,638.68 : x
  2. Step 2: Convert to fraction form
    3,392.19/5,089.98 = 1,638.68/x
  3. Step 3: Cross multiply
    3,392.19x = 5,089.98 × 1,638.68
  4. Step 4: Simplify right side
    3,392.19x = 8,340,822.98
  5. Step 5: Solve for x
    x = 8,340,822.98/3,392.19
  6. Step 6: Final answer
    x = 2,458.83

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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.