Home / 5,233.96-7,851.20-1,338.40

Finding the Fourth Proportional to 5,233.96, 7,851.20 and 1,338.40

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Solution

The fourth proportional to 5,233.96, 7,851.20 and 1,338.40 is: 2,007.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,233.96 : 7,851.20 = 1,338.40 : x
  2. Step 2: Convert to fraction form
    5,233.96/7,851.20 = 1,338.40/x
  3. Step 3: Cross multiply
    5,233.96x = 7,851.20 × 1,338.40
  4. Step 4: Simplify right side
    5,233.96x = 10,508,046.08
  5. Step 5: Solve for x
    x = 10,508,046.08/5,233.96
  6. Step 6: Final answer
    x = 2,007.67

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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.