Home / 6,216.49-8,579.15-3,421.99

Finding the Fourth Proportional to 6,216.49, 8,579.15 and 3,421.99

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Solution

The fourth proportional to 6,216.49, 8,579.15 and 3,421.99 is: 4,722.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.49 : 8,579.15 = 3,421.99 : x
  2. Step 2: Convert to fraction form
    6,216.49/8,579.15 = 3,421.99/x
  3. Step 3: Cross multiply
    6,216.49x = 8,579.15 × 3,421.99
  4. Step 4: Simplify right side
    6,216.49x = 29,357,765.51
  5. Step 5: Solve for x
    x = 29,357,765.51/6,216.49
  6. Step 6: Final answer
    x = 4,722.56

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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.