Home / 3,213.63-4,435.62-1,817.19

Finding the Fourth Proportional to 3,213.63, 4,435.62 and 1,817.19

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Solution

The fourth proportional to 3,213.63, 4,435.62 and 1,817.19 is: 2,508.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.63 : 4,435.62 = 1,817.19 : x
  2. Step 2: Convert to fraction form
    3,213.63/4,435.62 = 1,817.19/x
  3. Step 3: Cross multiply
    3,213.63x = 4,435.62 × 1,817.19
  4. Step 4: Simplify right side
    3,213.63x = 8,060,364.31
  5. Step 5: Solve for x
    x = 8,060,364.31/3,213.63
  6. Step 6: Final answer
    x = 2,508.18

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Half scale
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Double scale
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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.