Home / 1,511.76-2,084.14-1,293.04

Finding the Fourth Proportional to 1,511.76, 2,084.14 and 1,293.04

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Solution

The fourth proportional to 1,511.76, 2,084.14 and 1,293.04 is: 1,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.76 : 2,084.14 = 1,293.04 : x
  2. Step 2: Convert to fraction form
    1,511.76/2,084.14 = 1,293.04/x
  3. Step 3: Cross multiply
    1,511.76x = 2,084.14 × 1,293.04
  4. Step 4: Simplify right side
    1,511.76x = 2,694,876.39
  5. Step 5: Solve for x
    x = 2,694,876.39/1,511.76
  6. Step 6: Final answer
    x = 1,782.61

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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.