Home / 4,146.78-5,712.82-2,885.67

Finding the Fourth Proportional to 4,146.78, 5,712.82 and 2,885.67

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Solution

The fourth proportional to 4,146.78, 5,712.82 and 2,885.67 is: 3,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,146.78 : 5,712.82 = 2,885.67 : x
  2. Step 2: Convert to fraction form
    4,146.78/5,712.82 = 2,885.67/x
  3. Step 3: Cross multiply
    4,146.78x = 5,712.82 × 2,885.67
  4. Step 4: Simplify right side
    4,146.78x = 16,485,306.08
  5. Step 5: Solve for x
    x = 16,485,306.08/4,146.78
  6. Step 6: Final answer
    x = 3,975.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.