Home / 5,273.56-7,909.65-1,378.27

Finding the Fourth Proportional to 5,273.56, 7,909.65 and 1,378.27

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Solution

The fourth proportional to 5,273.56, 7,909.65 and 1,378.27 is: 2,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.56 : 7,909.65 = 1,378.27 : x
  2. Step 2: Convert to fraction form
    5,273.56/7,909.65 = 1,378.27/x
  3. Step 3: Cross multiply
    5,273.56x = 7,909.65 × 1,378.27
  4. Step 4: Simplify right side
    5,273.56x = 10,901,633.31
  5. Step 5: Solve for x
    x = 10,901,633.31/5,273.56
  6. Step 6: Final answer
    x = 2,067.22

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1.5x scale

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.