Home / 4,162.21-6,242.56-1,821.76

Finding the Fourth Proportional to 4,162.21, 6,242.56 and 1,821.76

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Solution

The fourth proportional to 4,162.21, 6,242.56 and 1,821.76 is: 2,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,162.21 : 6,242.56 = 1,821.76 : x
  2. Step 2: Convert to fraction form
    4,162.21/6,242.56 = 1,821.76/x
  3. Step 3: Cross multiply
    4,162.21x = 6,242.56 × 1,821.76
  4. Step 4: Simplify right side
    4,162.21x = 11,372,446.11
  5. Step 5: Solve for x
    x = 11,372,446.11/4,162.21
  6. Step 6: Final answer
    x = 2,732.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.