Home / 4,243.32-6,364.46-1,321.56

Finding the Fourth Proportional to 4,243.32, 6,364.46 and 1,321.56

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Solution

The fourth proportional to 4,243.32, 6,364.46 and 1,321.56 is: 1,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.32 : 6,364.46 = 1,321.56 : x
  2. Step 2: Convert to fraction form
    4,243.32/6,364.46 = 1,321.56/x
  3. Step 3: Cross multiply
    4,243.32x = 6,364.46 × 1,321.56
  4. Step 4: Simplify right side
    4,243.32x = 8,411,015.76
  5. Step 5: Solve for x
    x = 8,411,015.76/4,243.32
  6. Step 6: Final answer
    x = 1,982.18

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1.5x scale

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.