Home / 1,815.15-2,722.74-1,166.34

Finding the Fourth Proportional to 1,815.15, 2,722.74 and 1,166.34

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Solution

The fourth proportional to 1,815.15, 2,722.74 and 1,166.34 is: 1,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.15 : 2,722.74 = 1,166.34 : x
  2. Step 2: Convert to fraction form
    1,815.15/2,722.74 = 1,166.34/x
  3. Step 3: Cross multiply
    1,815.15x = 2,722.74 × 1,166.34
  4. Step 4: Simplify right side
    1,815.15x = 3,175,640.57
  5. Step 5: Solve for x
    x = 3,175,640.57/1,815.15
  6. Step 6: Final answer
    x = 1,749.52

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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.