Home / 3,117.29-4,299.89-1,997.06

Finding the Fourth Proportional to 3,117.29, 4,299.89 and 1,997.06

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Solution

The fourth proportional to 3,117.29, 4,299.89 and 1,997.06 is: 2,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.29 : 4,299.89 = 1,997.06 : x
  2. Step 2: Convert to fraction form
    3,117.29/4,299.89 = 1,997.06/x
  3. Step 3: Cross multiply
    3,117.29x = 4,299.89 × 1,997.06
  4. Step 4: Simplify right side
    3,117.29x = 8,587,106.84
  5. Step 5: Solve for x
    x = 8,587,106.84/3,117.29
  6. Step 6: Final answer
    x = 2,754.67

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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.