Home / 6,388.24-8,816.19-3,555.58

Finding the Fourth Proportional to 6,388.24, 8,816.19 and 3,555.58

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Solution

The fourth proportional to 6,388.24, 8,816.19 and 3,555.58 is: 4,906.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.24 : 8,816.19 = 3,555.58 : x
  2. Step 2: Convert to fraction form
    6,388.24/8,816.19 = 3,555.58/x
  3. Step 3: Cross multiply
    6,388.24x = 8,816.19 × 3,555.58
  4. Step 4: Simplify right side
    6,388.24x = 31,346,668.84
  5. Step 5: Solve for x
    x = 31,346,668.84/6,388.24
  6. Step 6: Final answer
    x = 4,906.93

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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.