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Finding the Fourth Proportional to 2,493.13, 3,739.69 and 644.23

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Solution

The fourth proportional to 2,493.13, 3,739.69 and 644.23 is: 966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,493.13 : 3,739.69 = 644.23 : x
  2. Step 2: Convert to fraction form
    2,493.13/3,739.69 = 644.23/x
  3. Step 3: Cross multiply
    2,493.13x = 3,739.69 × 644.23
  4. Step 4: Simplify right side
    2,493.13x = 2,409,220.49
  5. Step 5: Solve for x
    x = 2,409,220.49/2,493.13
  6. Step 6: Final answer
    x = 966.34

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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.