Home / 3,219.05-4,442.34-1,960.16

Finding the Fourth Proportional to 3,219.05, 4,442.34 and 1,960.16

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Solution

The fourth proportional to 3,219.05, 4,442.34 and 1,960.16 is: 2,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.05 : 4,442.34 = 1,960.16 : x
  2. Step 2: Convert to fraction form
    3,219.05/4,442.34 = 1,960.16/x
  3. Step 3: Cross multiply
    3,219.05x = 4,442.34 × 1,960.16
  4. Step 4: Simplify right side
    3,219.05x = 8,707,697.17
  5. Step 5: Solve for x
    x = 8,707,697.17/3,219.05
  6. Step 6: Final answer
    x = 2,705.05

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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.