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Finding the Fourth Proportional to 5,438.63, 7,505.31 and 2,954.63

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Solution

The fourth proportional to 5,438.63, 7,505.31 and 2,954.63 is: 4,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.63 : 7,505.31 = 2,954.63 : x
  2. Step 2: Convert to fraction form
    5,438.63/7,505.31 = 2,954.63/x
  3. Step 3: Cross multiply
    5,438.63x = 7,505.31 × 2,954.63
  4. Step 4: Simplify right side
    5,438.63x = 22,175,376.56
  5. Step 5: Solve for x
    x = 22,175,376.56/5,438.63
  6. Step 6: Final answer
    x = 4,077.39

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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.