Home / 3,997.29-5,510.88-2,800.67

Finding the Fourth Proportional to 3,997.29, 5,510.88 and 2,800.67

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Solution

The fourth proportional to 3,997.29, 5,510.88 and 2,800.67 is: 3,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.29 : 5,510.88 = 2,800.67 : x
  2. Step 2: Convert to fraction form
    3,997.29/5,510.88 = 2,800.67/x
  3. Step 3: Cross multiply
    3,997.29x = 5,510.88 × 2,800.67
  4. Step 4: Simplify right side
    3,997.29x = 15,434,128.74
  5. Step 5: Solve for x
    x = 15,434,128.74/3,997.29
  6. Step 6: Final answer
    x = 3,861.15

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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.