Home / 6,519.16-9,780.98-2,137.40

Finding the Fourth Proportional to 6,519.16, 9,780.98 and 2,137.40

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Solution

The fourth proportional to 6,519.16, 9,780.98 and 2,137.40 is: 3,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.16 : 9,780.98 = 2,137.40 : x
  2. Step 2: Convert to fraction form
    6,519.16/9,780.98 = 2,137.40/x
  3. Step 3: Cross multiply
    6,519.16x = 9,780.98 × 2,137.40
  4. Step 4: Simplify right side
    6,519.16x = 20,905,866.65
  5. Step 5: Solve for x
    x = 20,905,866.65/6,519.16
  6. Step 6: Final answer
    x = 3,206.83

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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.