Home / 2,383.86-3,576.26-1,690.78

Finding the Fourth Proportional to 2,383.86, 3,576.26 and 1,690.78

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Solution

The fourth proportional to 2,383.86, 3,576.26 and 1,690.78 is: 2,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.86 : 3,576.26 = 1,690.78 : x
  2. Step 2: Convert to fraction form
    2,383.86/3,576.26 = 1,690.78/x
  3. Step 3: Cross multiply
    2,383.86x = 3,576.26 × 1,690.78
  4. Step 4: Simplify right side
    2,383.86x = 6,046,668.88
  5. Step 5: Solve for x
    x = 6,046,668.88/2,383.86
  6. Step 6: Final answer
    x = 2,536.50

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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.