Home / 6,436.37-8,881.35-3,782.81

Finding the Fourth Proportional to 6,436.37, 8,881.35 and 3,782.81

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Solution

The fourth proportional to 6,436.37, 8,881.35 and 3,782.81 is: 5,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.37 : 8,881.35 = 3,782.81 : x
  2. Step 2: Convert to fraction form
    6,436.37/8,881.35 = 3,782.81/x
  3. Step 3: Cross multiply
    6,436.37x = 8,881.35 × 3,782.81
  4. Step 4: Simplify right side
    6,436.37x = 33,596,415.19
  5. Step 5: Solve for x
    x = 33,596,415.19/6,436.37
  6. Step 6: Final answer
    x = 5,219.78

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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.