Home / 6,436.36-8,879.20-4,449.68

Finding the Fourth Proportional to 6,436.36, 8,879.20 and 4,449.68

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Solution

The fourth proportional to 6,436.36, 8,879.20 and 4,449.68 is: 6,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.36 : 8,879.20 = 4,449.68 : x
  2. Step 2: Convert to fraction form
    6,436.36/8,879.20 = 4,449.68/x
  3. Step 3: Cross multiply
    6,436.36x = 8,879.20 × 4,449.68
  4. Step 4: Simplify right side
    6,436.36x = 39,509,598.66
  5. Step 5: Solve for x
    x = 39,509,598.66/6,436.36
  6. Step 6: Final answer
    x = 6,138.50

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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.