Home / 1,785.62-2,682.48-1,129.52

Finding the Fourth Proportional to 1,785.62, 2,682.48 and 1,129.52

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Solution

The fourth proportional to 1,785.62, 2,682.48 and 1,129.52 is: 1,696.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.62 : 2,682.48 = 1,129.52 : x
  2. Step 2: Convert to fraction form
    1,785.62/2,682.48 = 1,129.52/x
  3. Step 3: Cross multiply
    1,785.62x = 2,682.48 × 1,129.52
  4. Step 4: Simplify right side
    1,785.62x = 3,029,914.81
  5. Step 5: Solve for x
    x = 3,029,914.81/1,785.62
  6. Step 6: Final answer
    x = 1,696.84

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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.