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Finding the Fourth Proportional to 6,384.88, 8,808.24 and 4,613.68

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Solution

The fourth proportional to 6,384.88, 8,808.24 and 4,613.68 is: 6,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.88 : 8,808.24 = 4,613.68 : x
  2. Step 2: Convert to fraction form
    6,384.88/8,808.24 = 4,613.68/x
  3. Step 3: Cross multiply
    6,384.88x = 8,808.24 × 4,613.68
  4. Step 4: Simplify right side
    6,384.88x = 40,638,400.72
  5. Step 5: Solve for x
    x = 40,638,400.72/6,384.88
  6. Step 6: Final answer
    x = 6,364.79

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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.