Home / 1,228.96-1,697.52-1,082.08

Finding the Fourth Proportional to 1,228.96, 1,697.52 and 1,082.08

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Solution

The fourth proportional to 1,228.96, 1,697.52 and 1,082.08 is: 1,494.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.96 : 1,697.52 = 1,082.08 : x
  2. Step 2: Convert to fraction form
    1,228.96/1,697.52 = 1,082.08/x
  3. Step 3: Cross multiply
    1,228.96x = 1,697.52 × 1,082.08
  4. Step 4: Simplify right side
    1,228.96x = 1,836,852.44
  5. Step 5: Solve for x
    x = 1,836,852.44/1,228.96
  6. Step 6: Final answer
    x = 1,494.64

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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.