Home / 3,321-4,981.50-1,240.92

Finding the Fourth Proportional to 3,321, 4,981.50 and 1,240.92

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Solution

The fourth proportional to 3,321, 4,981.50 and 1,240.92 is: 1,861.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321 : 4,981.50 = 1,240.92 : x
  2. Step 2: Convert to fraction form
    3,321/4,981.50 = 1,240.92/x
  3. Step 3: Cross multiply
    3,321x = 4,981.50 × 1,240.92
  4. Step 4: Simplify right side
    3,321x = 6,181,642.98
  5. Step 5: Solve for x
    x = 6,181,642.98/3,321
  6. Step 6: Final answer
    x = 1,861.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.