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Finding the Fourth Proportional to 4,262.91, 6,361.95 and 3,980.92

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Solution

The fourth proportional to 4,262.91, 6,361.95 and 3,980.92 is: 5,941.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,262.91 : 6,361.95 = 3,980.92 : x
  2. Step 2: Convert to fraction form
    4,262.91/6,361.95 = 3,980.92/x
  3. Step 3: Cross multiply
    4,262.91x = 6,361.95 × 3,980.92
  4. Step 4: Simplify right side
    4,262.91x = 25,326,382.18
  5. Step 5: Solve for x
    x = 25,326,382.18/4,262.91
  6. Step 6: Final answer
    x = 5,941.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.