Home / 1,665.13-2,493.14-1,200.40

Finding the Fourth Proportional to 1,665.13, 2,493.14 and 1,200.40

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Solution

The fourth proportional to 1,665.13, 2,493.14 and 1,200.40 is: 1,797.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.13 : 2,493.14 = 1,200.40 : x
  2. Step 2: Convert to fraction form
    1,665.13/2,493.14 = 1,200.40/x
  3. Step 3: Cross multiply
    1,665.13x = 2,493.14 × 1,200.40
  4. Step 4: Simplify right side
    1,665.13x = 2,992,765.26
  5. Step 5: Solve for x
    x = 2,992,765.26/1,665.13
  6. Step 6: Final answer
    x = 1,797.32

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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.