Home / 5,311.73-7,329.92-2,921.67

Finding the Fourth Proportional to 5,311.73, 7,329.92 and 2,921.67

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Solution

The fourth proportional to 5,311.73, 7,329.92 and 2,921.67 is: 4,031.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.73 : 7,329.92 = 2,921.67 : x
  2. Step 2: Convert to fraction form
    5,311.73/7,329.92 = 2,921.67/x
  3. Step 3: Cross multiply
    5,311.73x = 7,329.92 × 2,921.67
  4. Step 4: Simplify right side
    5,311.73x = 21,415,592.76
  5. Step 5: Solve for x
    x = 21,415,592.76/5,311.73
  6. Step 6: Final answer
    x = 4,031.75

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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.