Home / 4,459.39-6,689.14-2,119.64

Finding the Fourth Proportional to 4,459.39, 6,689.14 and 2,119.64

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Solution

The fourth proportional to 4,459.39, 6,689.14 and 2,119.64 is: 3,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.39 : 6,689.14 = 2,119.64 : x
  2. Step 2: Convert to fraction form
    4,459.39/6,689.14 = 2,119.64/x
  3. Step 3: Cross multiply
    4,459.39x = 6,689.14 × 2,119.64
  4. Step 4: Simplify right side
    4,459.39x = 14,178,529.96
  5. Step 5: Solve for x
    x = 14,178,529.96/4,459.39
  6. Step 6: Final answer
    x = 3,179.48

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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.