Home / 2,785.37-4,179.14-1,142.69

Finding the Fourth Proportional to 2,785.37, 4,179.14 and 1,142.69

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Solution

The fourth proportional to 2,785.37, 4,179.14 and 1,142.69 is: 1,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.37 : 4,179.14 = 1,142.69 : x
  2. Step 2: Convert to fraction form
    2,785.37/4,179.14 = 1,142.69/x
  3. Step 3: Cross multiply
    2,785.37x = 4,179.14 × 1,142.69
  4. Step 4: Simplify right side
    2,785.37x = 4,775,455.77
  5. Step 5: Solve for x
    x = 4,775,455.77/2,785.37
  6. Step 6: Final answer
    x = 1,714.48

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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.