Home / 5,738.10-7,920.13-3,380.98

Finding the Fourth Proportional to 5,738.10, 7,920.13 and 3,380.98

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Solution

The fourth proportional to 5,738.10, 7,920.13 and 3,380.98 is: 4,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,738.10 : 7,920.13 = 3,380.98 : x
  2. Step 2: Convert to fraction form
    5,738.10/7,920.13 = 3,380.98/x
  3. Step 3: Cross multiply
    5,738.10x = 7,920.13 × 3,380.98
  4. Step 4: Simplify right side
    5,738.10x = 26,777,801.13
  5. Step 5: Solve for x
    x = 26,777,801.13/5,738.10
  6. Step 6: Final answer
    x = 4,666.67

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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.