Home / 6,561.99-9,840.84-2,178.27

Finding the Fourth Proportional to 6,561.99, 9,840.84 and 2,178.27

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Solution

The fourth proportional to 6,561.99, 9,840.84 and 2,178.27 is: 3,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,561.99 : 9,840.84 = 2,178.27 : x
  2. Step 2: Convert to fraction form
    6,561.99/9,840.84 = 2,178.27/x
  3. Step 3: Cross multiply
    6,561.99x = 9,840.84 × 2,178.27
  4. Step 4: Simplify right side
    6,561.99x = 21,436,006.55
  5. Step 5: Solve for x
    x = 21,436,006.55/6,561.99
  6. Step 6: Final answer
    x = 3,266.69

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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.