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Finding the Fourth Proportional to 2,516.21, 3,774.31 and 955.85

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Solution

The fourth proportional to 2,516.21, 3,774.31 and 955.85 is: 1,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.21 : 3,774.31 = 955.85 : x
  2. Step 2: Convert to fraction form
    2,516.21/3,774.31 = 955.85/x
  3. Step 3: Cross multiply
    2,516.21x = 3,774.31 × 955.85
  4. Step 4: Simplify right side
    2,516.21x = 3,607,655.34
  5. Step 5: Solve for x
    x = 3,607,655.34/2,516.21
  6. Step 6: Final answer
    x = 1,433.77

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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.