Home / 2,157.80-3,233.02-1,693.64

Finding the Fourth Proportional to 2,157.80, 3,233.02 and 1,693.64

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Solution

The fourth proportional to 2,157.80, 3,233.02 and 1,693.64 is: 2,537.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.80 : 3,233.02 = 1,693.64 : x
  2. Step 2: Convert to fraction form
    2,157.80/3,233.02 = 1,693.64/x
  3. Step 3: Cross multiply
    2,157.80x = 3,233.02 × 1,693.64
  4. Step 4: Simplify right side
    2,157.80x = 5,475,571.99
  5. Step 5: Solve for x
    x = 5,475,571.99/2,157.80
  6. Step 6: Final answer
    x = 2,537.57

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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.