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Finding the Fourth Proportional to 6,371.85, 8,793.71 and 3,539.77

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Solution

The fourth proportional to 6,371.85, 8,793.71 and 3,539.77 is: 4,885.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.85 : 8,793.71 = 3,539.77 : x
  2. Step 2: Convert to fraction form
    6,371.85/8,793.71 = 3,539.77/x
  3. Step 3: Cross multiply
    6,371.85x = 8,793.71 × 3,539.77
  4. Step 4: Simplify right side
    6,371.85x = 31,127,710.85
  5. Step 5: Solve for x
    x = 31,127,710.85/6,371.85
  6. Step 6: Final answer
    x = 4,885.19

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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.