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Finding the Fourth Proportional to 3,155.92, 4,355.44 and 1,739.84

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Solution

The fourth proportional to 3,155.92, 4,355.44 and 1,739.84 is: 2,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.92 : 4,355.44 = 1,739.84 : x
  2. Step 2: Convert to fraction form
    3,155.92/4,355.44 = 1,739.84/x
  3. Step 3: Cross multiply
    3,155.92x = 4,355.44 × 1,739.84
  4. Step 4: Simplify right side
    3,155.92x = 7,577,742.60
  5. Step 5: Solve for x
    x = 7,577,742.60/3,155.92
  6. Step 6: Final answer
    x = 2,401.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.