Home / 3,429.33-5,140.80-1,867.05

Finding the Fourth Proportional to 3,429.33, 5,140.80 and 1,867.05

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Solution

The fourth proportional to 3,429.33, 5,140.80 and 1,867.05 is: 2,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.33 : 5,140.80 = 1,867.05 : x
  2. Step 2: Convert to fraction form
    3,429.33/5,140.80 = 1,867.05/x
  3. Step 3: Cross multiply
    3,429.33x = 5,140.80 × 1,867.05
  4. Step 4: Simplify right side
    3,429.33x = 9,598,130.64
  5. Step 5: Solve for x
    x = 9,598,130.64/3,429.33
  6. Step 6: Final answer
    x = 2,798.84

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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.