Home / 5,129.82-7,694.70-1,432.05

Finding the Fourth Proportional to 5,129.82, 7,694.70 and 1,432.05

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Solution

The fourth proportional to 5,129.82, 7,694.70 and 1,432.05 is: 2,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.82 : 7,694.70 = 1,432.05 : x
  2. Step 2: Convert to fraction form
    5,129.82/7,694.70 = 1,432.05/x
  3. Step 3: Cross multiply
    5,129.82x = 7,694.70 × 1,432.05
  4. Step 4: Simplify right side
    5,129.82x = 11,019,195.14
  5. Step 5: Solve for x
    x = 11,019,195.14/5,129.82
  6. Step 6: Final answer
    x = 2,148.07

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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.