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Finding the Fourth Proportional to 6,368.86, 8,789.43 and 3,574.54

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Solution

The fourth proportional to 6,368.86, 8,789.43 and 3,574.54 is: 4,933.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.86 : 8,789.43 = 3,574.54 : x
  2. Step 2: Convert to fraction form
    6,368.86/8,789.43 = 3,574.54/x
  3. Step 3: Cross multiply
    6,368.86x = 8,789.43 × 3,574.54
  4. Step 4: Simplify right side
    6,368.86x = 31,418,169.11
  5. Step 5: Solve for x
    x = 31,418,169.11/6,368.86
  6. Step 6: Final answer
    x = 4,933.09

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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.