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Finding the Fourth Proportional to 4,998.72, 6,861.36 and 4,784.88

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Solution

The fourth proportional to 4,998.72, 6,861.36 and 4,784.88 is: 6,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.72 : 6,861.36 = 4,784.88 : x
  2. Step 2: Convert to fraction form
    4,998.72/6,861.36 = 4,784.88/x
  3. Step 3: Cross multiply
    4,998.72x = 6,861.36 × 4,784.88
  4. Step 4: Simplify right side
    4,998.72x = 32,830,784.24
  5. Step 5: Solve for x
    x = 32,830,784.24/4,998.72
  6. Step 6: Final answer
    x = 6,567.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.