Home / 1,511.43-2,084.22-1,179.30

Finding the Fourth Proportional to 1,511.43, 2,084.22 and 1,179.30

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Solution

The fourth proportional to 1,511.43, 2,084.22 and 1,179.30 is: 1,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.43 : 2,084.22 = 1,179.30 : x
  2. Step 2: Convert to fraction form
    1,511.43/2,084.22 = 1,179.30/x
  3. Step 3: Cross multiply
    1,511.43x = 2,084.22 × 1,179.30
  4. Step 4: Simplify right side
    1,511.43x = 2,457,920.65
  5. Step 5: Solve for x
    x = 2,457,920.65/1,511.43
  6. Step 6: Final answer
    x = 1,626.22

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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.