Home / 4,211.45-6,316.56-1,288.97

Finding the Fourth Proportional to 4,211.45, 6,316.56 and 1,288.97

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Solution

The fourth proportional to 4,211.45, 6,316.56 and 1,288.97 is: 1,933.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.45 : 6,316.56 = 1,288.97 : x
  2. Step 2: Convert to fraction form
    4,211.45/6,316.56 = 1,288.97/x
  3. Step 3: Cross multiply
    4,211.45x = 6,316.56 × 1,288.97
  4. Step 4: Simplify right side
    4,211.45x = 8,141,856.34
  5. Step 5: Solve for x
    x = 8,141,856.34/4,211.45
  6. Step 6: Final answer
    x = 1,933.27

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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.