Home / 5,378.28-8,069.70-2,783.04

Finding the Fourth Proportional to 5,378.28, 8,069.70 and 2,783.04

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Solution

The fourth proportional to 5,378.28, 8,069.70 and 2,783.04 is: 4,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.28 : 8,069.70 = 2,783.04 : x
  2. Step 2: Convert to fraction form
    5,378.28/8,069.70 = 2,783.04/x
  3. Step 3: Cross multiply
    5,378.28x = 8,069.70 × 2,783.04
  4. Step 4: Simplify right side
    5,378.28x = 22,458,297.89
  5. Step 5: Solve for x
    x = 22,458,297.89/5,378.28
  6. Step 6: Final answer
    x = 4,175.74

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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.