Home / 3,963-5,942.58-1,881.72

Finding the Fourth Proportional to 3,963, 5,942.58 and 1,881.72

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Solution

The fourth proportional to 3,963, 5,942.58 and 1,881.72 is: 2,821.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963 : 5,942.58 = 1,881.72 : x
  2. Step 2: Convert to fraction form
    3,963/5,942.58 = 1,881.72/x
  3. Step 3: Cross multiply
    3,963x = 5,942.58 × 1,881.72
  4. Step 4: Simplify right side
    3,963x = 11,182,271.64
  5. Step 5: Solve for x
    x = 11,182,271.64/3,963
  6. Step 6: Final answer
    x = 2,821.67

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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.