Home / 1,245.64-1,865.58-1,202.44

Finding the Fourth Proportional to 1,245.64, 1,865.58 and 1,202.44

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Solution

The fourth proportional to 1,245.64, 1,865.58 and 1,202.44 is: 1,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.64 : 1,865.58 = 1,202.44 : x
  2. Step 2: Convert to fraction form
    1,245.64/1,865.58 = 1,202.44/x
  3. Step 3: Cross multiply
    1,245.64x = 1,865.58 × 1,202.44
  4. Step 4: Simplify right side
    1,245.64x = 2,243,248.02
  5. Step 5: Solve for x
    x = 2,243,248.02/1,245.64
  6. Step 6: Final answer
    x = 1,800.88

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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.