Home / 6,434.64-8,877.60-3,781.89

Finding the Fourth Proportional to 6,434.64, 8,877.60 and 3,781.89

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Solution

The fourth proportional to 6,434.64, 8,877.60 and 3,781.89 is: 5,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.64 : 8,877.60 = 3,781.89 : x
  2. Step 2: Convert to fraction form
    6,434.64/8,877.60 = 3,781.89/x
  3. Step 3: Cross multiply
    6,434.64x = 8,877.60 × 3,781.89
  4. Step 4: Simplify right side
    6,434.64x = 33,574,106.66
  5. Step 5: Solve for x
    x = 33,574,106.66/6,434.64
  6. Step 6: Final answer
    x = 5,217.71

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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.