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Finding the Fourth Proportional to 6,364.32, 8,782.47 and 3,531.68

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Solution

The fourth proportional to 6,364.32, 8,782.47 and 3,531.68 is: 4,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,364.32 : 8,782.47 = 3,531.68 : x
  2. Step 2: Convert to fraction form
    6,364.32/8,782.47 = 3,531.68/x
  3. Step 3: Cross multiply
    6,364.32x = 8,782.47 × 3,531.68
  4. Step 4: Simplify right side
    6,364.32x = 31,016,829.74
  5. Step 5: Solve for x
    x = 31,016,829.74/6,364.32
  6. Step 6: Final answer
    x = 4,873.55

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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.