Home / 6,219.20-8,582.72-3,424.80

Finding the Fourth Proportional to 6,219.20, 8,582.72 and 3,424.80

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Solution

The fourth proportional to 6,219.20, 8,582.72 and 3,424.80 is: 4,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.20 : 8,582.72 = 3,424.80 : x
  2. Step 2: Convert to fraction form
    6,219.20/8,582.72 = 3,424.80/x
  3. Step 3: Cross multiply
    6,219.20x = 8,582.72 × 3,424.80
  4. Step 4: Simplify right side
    6,219.20x = 29,394,099.46
  5. Step 5: Solve for x
    x = 29,394,099.46/6,219.20
  6. Step 6: Final answer
    x = 4,726.35

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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.