Home / 6,579.50-9,870.60-2,137.40

Finding the Fourth Proportional to 6,579.50, 9,870.60 and 2,137.40

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Solution

The fourth proportional to 6,579.50, 9,870.60 and 2,137.40 is: 3,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,579.50 : 9,870.60 = 2,137.40 : x
  2. Step 2: Convert to fraction form
    6,579.50/9,870.60 = 2,137.40/x
  3. Step 3: Cross multiply
    6,579.50x = 9,870.60 × 2,137.40
  4. Step 4: Simplify right side
    6,579.50x = 21,097,420.44
  5. Step 5: Solve for x
    x = 21,097,420.44/6,579.50
  6. Step 6: Final answer
    x = 3,206.54

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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.