Home / 6,433.96-8,877.71-3,781.90

Finding the Fourth Proportional to 6,433.96, 8,877.71 and 3,781.90

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Solution

The fourth proportional to 6,433.96, 8,877.71 and 3,781.90 is: 5,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,433.96 : 8,877.71 = 3,781.90 : x
  2. Step 2: Convert to fraction form
    6,433.96/8,877.71 = 3,781.90/x
  3. Step 3: Cross multiply
    6,433.96x = 8,877.71 × 3,781.90
  4. Step 4: Simplify right side
    6,433.96x = 33,574,548.15
  5. Step 5: Solve for x
    x = 33,574,548.15/6,433.96
  6. Step 6: Final answer
    x = 5,218.34

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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.