Home / 2,157.33-3,236.46-696.60

Finding the Fourth Proportional to 2,157.33, 3,236.46 and 696.60

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Solution

The fourth proportional to 2,157.33, 3,236.46 and 696.60 is: 1,045.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.33 : 3,236.46 = 696.60 : x
  2. Step 2: Convert to fraction form
    2,157.33/3,236.46 = 696.60/x
  3. Step 3: Cross multiply
    2,157.33x = 3,236.46 × 696.60
  4. Step 4: Simplify right side
    2,157.33x = 2,254,515.42
  5. Step 5: Solve for x
    x = 2,254,515.42/2,157.33
  6. Step 6: Final answer
    x = 1,045.05

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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.