Home / 3,945.17-5,443.96-2,176.67

Finding the Fourth Proportional to 3,945.17, 5,443.96 and 2,176.67

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Solution

The fourth proportional to 3,945.17, 5,443.96 and 2,176.67 is: 3,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.17 : 5,443.96 = 2,176.67 : x
  2. Step 2: Convert to fraction form
    3,945.17/5,443.96 = 2,176.67/x
  3. Step 3: Cross multiply
    3,945.17x = 5,443.96 × 2,176.67
  4. Step 4: Simplify right side
    3,945.17x = 11,849,671.75
  5. Step 5: Solve for x
    x = 11,849,671.75/3,945.17
  6. Step 6: Final answer
    x = 3,003.59

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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.