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Finding the Fourth Proportional to 2,842.56, 4,263.79 and 993.67

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Solution

The fourth proportional to 2,842.56, 4,263.79 and 993.67 is: 1,490.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.56 : 4,263.79 = 993.67 : x
  2. Step 2: Convert to fraction form
    2,842.56/4,263.79 = 993.67/x
  3. Step 3: Cross multiply
    2,842.56x = 4,263.79 × 993.67
  4. Step 4: Simplify right side
    2,842.56x = 4,236,800.21
  5. Step 5: Solve for x
    x = 4,236,800.21/2,842.56
  6. Step 6: Final answer
    x = 1,490.49

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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.