Home / 3,878.32-5,817.46-1,142.32

Finding the Fourth Proportional to 3,878.32, 5,817.46 and 1,142.32

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Solution

The fourth proportional to 3,878.32, 5,817.46 and 1,142.32 is: 1,713.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.32 : 5,817.46 = 1,142.32 : x
  2. Step 2: Convert to fraction form
    3,878.32/5,817.46 = 1,142.32/x
  3. Step 3: Cross multiply
    3,878.32x = 5,817.46 × 1,142.32
  4. Step 4: Simplify right side
    3,878.32x = 6,645,400.91
  5. Step 5: Solve for x
    x = 6,645,400.91/3,878.32
  6. Step 6: Final answer
    x = 1,713.47

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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.