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Finding the Fourth Proportional to 2,518.67, 3,778.01 and 958.32

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Solution

The fourth proportional to 2,518.67, 3,778.01 and 958.32 is: 1,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.67 : 3,778.01 = 958.32 : x
  2. Step 2: Convert to fraction form
    2,518.67/3,778.01 = 958.32/x
  3. Step 3: Cross multiply
    2,518.67x = 3,778.01 × 958.32
  4. Step 4: Simplify right side
    2,518.67x = 3,620,542.54
  5. Step 5: Solve for x
    x = 3,620,542.54/2,518.67
  6. Step 6: Final answer
    x = 1,437.48

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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.