Home / 5,273.50-7,909.62-1,378.20

Finding the Fourth Proportional to 5,273.50, 7,909.62 and 1,378.20

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Solution

The fourth proportional to 5,273.50, 7,909.62 and 1,378.20 is: 2,067.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.50 : 7,909.62 = 1,378.20 : x
  2. Step 2: Convert to fraction form
    5,273.50/7,909.62 = 1,378.20/x
  3. Step 3: Cross multiply
    5,273.50x = 7,909.62 × 1,378.20
  4. Step 4: Simplify right side
    5,273.50x = 10,901,038.28
  5. Step 5: Solve for x
    x = 10,901,038.28/5,273.50
  6. Step 6: Final answer
    x = 2,067.14

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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.