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Finding the Fourth Proportional to 6,293.43, 8,686.50 and 3,642.39

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Solution

The fourth proportional to 6,293.43, 8,686.50 and 3,642.39 is: 5,027.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,293.43 : 8,686.50 = 3,642.39 : x
  2. Step 2: Convert to fraction form
    6,293.43/8,686.50 = 3,642.39/x
  3. Step 3: Cross multiply
    6,293.43x = 8,686.50 × 3,642.39
  4. Step 4: Simplify right side
    6,293.43x = 31,639,620.74
  5. Step 5: Solve for x
    x = 31,639,620.74/6,293.43
  6. Step 6: Final answer
    x = 5,027.40

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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.