Home / 6,435.50-8,881.84-3,782.90

Finding the Fourth Proportional to 6,435.50, 8,881.84 and 3,782.90

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Solution

The fourth proportional to 6,435.50, 8,881.84 and 3,782.90 is: 5,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.50 : 8,881.84 = 3,782.90 : x
  2. Step 2: Convert to fraction form
    6,435.50/8,881.84 = 3,782.90/x
  3. Step 3: Cross multiply
    6,435.50x = 8,881.84 × 3,782.90
  4. Step 4: Simplify right side
    6,435.50x = 33,599,112.54
  5. Step 5: Solve for x
    x = 33,599,112.54/6,435.50
  6. Step 6: Final answer
    x = 5,220.90

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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.