Home / 6,719.20-10,078.96-1,788.96

Finding the Fourth Proportional to 6,719.20, 10,078.96 and 1,788.96

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Solution

The fourth proportional to 6,719.20, 10,078.96 and 1,788.96 is: 2,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.20 : 10,078.96 = 1,788.96 : x
  2. Step 2: Convert to fraction form
    6,719.20/10,078.96 = 1,788.96/x
  3. Step 3: Cross multiply
    6,719.20x = 10,078.96 × 1,788.96
  4. Step 4: Simplify right side
    6,719.20x = 18,030,856.28
  5. Step 5: Solve for x
    x = 18,030,856.28/6,719.20
  6. Step 6: Final answer
    x = 2,683.48

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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.