Home / 6,219.60-8,582.81-3,386.88

Finding the Fourth Proportional to 6,219.60, 8,582.81 and 3,386.88

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Solution

The fourth proportional to 6,219.60, 8,582.81 and 3,386.88 is: 4,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.60 : 8,582.81 = 3,386.88 : x
  2. Step 2: Convert to fraction form
    6,219.60/8,582.81 = 3,386.88/x
  3. Step 3: Cross multiply
    6,219.60x = 8,582.81 × 3,386.88
  4. Step 4: Simplify right side
    6,219.60x = 29,068,949.65
  5. Step 5: Solve for x
    x = 29,068,949.65/6,219.60
  6. Step 6: Final answer
    x = 4,673.76

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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.