Home / 4,059.40-6,086.70-2,115.40

Finding the Fourth Proportional to 4,059.40, 6,086.70 and 2,115.40

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Solution

The fourth proportional to 4,059.40, 6,086.70 and 2,115.40 is: 3,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,059.40 : 6,086.70 = 2,115.40 : x
  2. Step 2: Convert to fraction form
    4,059.40/6,086.70 = 2,115.40/x
  3. Step 3: Cross multiply
    4,059.40x = 6,086.70 × 2,115.40
  4. Step 4: Simplify right side
    4,059.40x = 12,875,805.18
  5. Step 5: Solve for x
    x = 12,875,805.18/4,059.40
  6. Step 6: Final answer
    x = 3,171.85

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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.