Home / 5,378.72-8,068.94-2,605.62

Finding the Fourth Proportional to 5,378.72, 8,068.94 and 2,605.62

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Solution

The fourth proportional to 5,378.72, 8,068.94 and 2,605.62 is: 3,908.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.72 : 8,068.94 = 2,605.62 : x
  2. Step 2: Convert to fraction form
    5,378.72/8,068.94 = 2,605.62/x
  3. Step 3: Cross multiply
    5,378.72x = 8,068.94 × 2,605.62
  4. Step 4: Simplify right side
    5,378.72x = 21,024,591.44
  5. Step 5: Solve for x
    x = 21,024,591.44/5,378.72
  6. Step 6: Final answer
    x = 3,908.85

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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.