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Finding the Fourth Proportional to 3,621.86, 4,992.34 and 2,440.88

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Solution

The fourth proportional to 3,621.86, 4,992.34 and 2,440.88 is: 3,364.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.86 : 4,992.34 = 2,440.88 : x
  2. Step 2: Convert to fraction form
    3,621.86/4,992.34 = 2,440.88/x
  3. Step 3: Cross multiply
    3,621.86x = 4,992.34 × 2,440.88
  4. Step 4: Simplify right side
    3,621.86x = 12,185,702.86
  5. Step 5: Solve for x
    x = 12,185,702.86/3,621.86
  6. Step 6: Final answer
    x = 3,364.49

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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.