Home / 3,378.60-5,069.16-2,065.05

Finding the Fourth Proportional to 3,378.60, 5,069.16 and 2,065.05

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Solution

The fourth proportional to 3,378.60, 5,069.16 and 2,065.05 is: 3,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.60 : 5,069.16 = 2,065.05 : x
  2. Step 2: Convert to fraction form
    3,378.60/5,069.16 = 2,065.05/x
  3. Step 3: Cross multiply
    3,378.60x = 5,069.16 × 2,065.05
  4. Step 4: Simplify right side
    3,378.60x = 10,468,068.86
  5. Step 5: Solve for x
    x = 10,468,068.86/3,378.60
  6. Step 6: Final answer
    x = 3,098.35

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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.