Home / 3,390.32-5,086.90-1,828.47

Finding the Fourth Proportional to 3,390.32, 5,086.90 and 1,828.47

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Solution

The fourth proportional to 3,390.32, 5,086.90 and 1,828.47 is: 2,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.32 : 5,086.90 = 1,828.47 : x
  2. Step 2: Convert to fraction form
    3,390.32/5,086.90 = 1,828.47/x
  3. Step 3: Cross multiply
    3,390.32x = 5,086.90 × 1,828.47
  4. Step 4: Simplify right side
    3,390.32x = 9,301,265.40
  5. Step 5: Solve for x
    x = 9,301,265.40/3,390.32
  6. Step 6: Final answer
    x = 2,743.48

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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.