Home / 5,260.46-7,890.08-2,137.30

Finding the Fourth Proportional to 5,260.46, 7,890.08 and 2,137.30

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Solution

The fourth proportional to 5,260.46, 7,890.08 and 2,137.30 is: 3,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.46 : 7,890.08 = 2,137.30 : x
  2. Step 2: Convert to fraction form
    5,260.46/7,890.08 = 2,137.30/x
  3. Step 3: Cross multiply
    5,260.46x = 7,890.08 × 2,137.30
  4. Step 4: Simplify right side
    5,260.46x = 16,863,467.98
  5. Step 5: Solve for x
    x = 16,863,467.98/5,260.46
  6. Step 6: Final answer
    x = 3,205.70

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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.