Home / 2,951.30-4,078.65-2,419.37

Finding the Fourth Proportional to 2,951.30, 4,078.65 and 2,419.37

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Solution

The fourth proportional to 2,951.30, 4,078.65 and 2,419.37 is: 3,343.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.30 : 4,078.65 = 2,419.37 : x
  2. Step 2: Convert to fraction form
    2,951.30/4,078.65 = 2,419.37/x
  3. Step 3: Cross multiply
    2,951.30x = 4,078.65 × 2,419.37
  4. Step 4: Simplify right side
    2,951.30x = 9,867,754.03
  5. Step 5: Solve for x
    x = 9,867,754.03/2,951.30
  6. Step 6: Final answer
    x = 3,343.53

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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.