Home / 3,558.96-4,910.40-2,160.72

Finding the Fourth Proportional to 3,558.96, 4,910.40 and 2,160.72

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Solution

The fourth proportional to 3,558.96, 4,910.40 and 2,160.72 is: 2,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.96 : 4,910.40 = 2,160.72 : x
  2. Step 2: Convert to fraction form
    3,558.96/4,910.40 = 2,160.72/x
  3. Step 3: Cross multiply
    3,558.96x = 4,910.40 × 2,160.72
  4. Step 4: Simplify right side
    3,558.96x = 10,609,999.49
  5. Step 5: Solve for x
    x = 10,609,999.49/3,558.96
  6. Step 6: Final answer
    x = 2,981.21

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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.