Home / 6,216.24-8,578.98-3,421.92

Finding the Fourth Proportional to 6,216.24, 8,578.98 and 3,421.92

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Solution

The fourth proportional to 6,216.24, 8,578.98 and 3,421.92 is: 4,722.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.24 : 8,578.98 = 3,421.92 : x
  2. Step 2: Convert to fraction form
    6,216.24/8,578.98 = 3,421.92/x
  3. Step 3: Cross multiply
    6,216.24x = 8,578.98 × 3,421.92
  4. Step 4: Simplify right side
    6,216.24x = 29,356,583.24
  5. Step 5: Solve for x
    x = 29,356,583.24/6,216.24
  6. Step 6: Final answer
    x = 4,722.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.