Home / 3,885.69-5,827.38-1,112.61

Finding the Fourth Proportional to 3,885.69, 5,827.38 and 1,112.61

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Solution

The fourth proportional to 3,885.69, 5,827.38 and 1,112.61 is: 1,668.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.69 : 5,827.38 = 1,112.61 : x
  2. Step 2: Convert to fraction form
    3,885.69/5,827.38 = 1,112.61/x
  3. Step 3: Cross multiply
    3,885.69x = 5,827.38 × 1,112.61
  4. Step 4: Simplify right side
    3,885.69x = 6,483,601.26
  5. Step 5: Solve for x
    x = 6,483,601.26/3,885.69
  6. Step 6: Final answer
    x = 1,668.58

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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.