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Finding the Fourth Proportional to 2,157.37, 3,236.54 and 618.25

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Solution

The fourth proportional to 2,157.37, 3,236.54 and 618.25 is: 927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.37 : 3,236.54 = 618.25 : x
  2. Step 2: Convert to fraction form
    2,157.37/3,236.54 = 618.25/x
  3. Step 3: Cross multiply
    2,157.37x = 3,236.54 × 618.25
  4. Step 4: Simplify right side
    2,157.37x = 2,000,987.76
  5. Step 5: Solve for x
    x = 2,000,987.76/2,157.37
  6. Step 6: Final answer
    x = 927.51

Related Problems

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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.