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Finding the Fourth Proportional to 6,307.73, 8,696.95 and 3,945.77

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Solution

The fourth proportional to 6,307.73, 8,696.95 and 3,945.77 is: 5,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.73 : 8,696.95 = 3,945.77 : x
  2. Step 2: Convert to fraction form
    6,307.73/8,696.95 = 3,945.77/x
  3. Step 3: Cross multiply
    6,307.73x = 8,696.95 × 3,945.77
  4. Step 4: Simplify right side
    6,307.73x = 34,316,164.40
  5. Step 5: Solve for x
    x = 34,316,164.40/6,307.73
  6. Step 6: Final answer
    x = 5,440.34

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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.