Home / 5,430.50-8,145.75-1,967.75

Finding the Fourth Proportional to 5,430.50, 8,145.75 and 1,967.75

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Solution

The fourth proportional to 5,430.50, 8,145.75 and 1,967.75 is: 2,951.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.50 : 8,145.75 = 1,967.75 : x
  2. Step 2: Convert to fraction form
    5,430.50/8,145.75 = 1,967.75/x
  3. Step 3: Cross multiply
    5,430.50x = 8,145.75 × 1,967.75
  4. Step 4: Simplify right side
    5,430.50x = 16,028,799.56
  5. Step 5: Solve for x
    x = 16,028,799.56/5,430.50
  6. Step 6: Final answer
    x = 2,951.63

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Similar ratio
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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.