Home / 2,427.28-3,349.40-1,379.28

Finding the Fourth Proportional to 2,427.28, 3,349.40 and 1,379.28

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Solution

The fourth proportional to 2,427.28, 3,349.40 and 1,379.28 is: 1,903.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.28 : 3,349.40 = 1,379.28 : x
  2. Step 2: Convert to fraction form
    2,427.28/3,349.40 = 1,379.28/x
  3. Step 3: Cross multiply
    2,427.28x = 3,349.40 × 1,379.28
  4. Step 4: Simplify right side
    2,427.28x = 4,619,760.43
  5. Step 5: Solve for x
    x = 4,619,760.43/2,427.28
  6. Step 6: Final answer
    x = 1,903.27

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1.5x scale

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.