Home / 3,885.57-5,829.30-1,112.31

Finding the Fourth Proportional to 3,885.57, 5,829.30 and 1,112.31

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Solution

The fourth proportional to 3,885.57, 5,829.30 and 1,112.31 is: 1,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.57 : 5,829.30 = 1,112.31 : x
  2. Step 2: Convert to fraction form
    3,885.57/5,829.30 = 1,112.31/x
  3. Step 3: Cross multiply
    3,885.57x = 5,829.30 × 1,112.31
  4. Step 4: Simplify right side
    3,885.57x = 6,483,988.68
  5. Step 5: Solve for x
    x = 6,483,988.68/3,885.57
  6. Step 6: Final answer
    x = 1,668.74

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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.