Home / 3,878.04-5,817.42-1,281.48

Finding the Fourth Proportional to 3,878.04, 5,817.42 and 1,281.48

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Solution

The fourth proportional to 3,878.04, 5,817.42 and 1,281.48 is: 1,922.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.04 : 5,817.42 = 1,281.48 : x
  2. Step 2: Convert to fraction form
    3,878.04/5,817.42 = 1,281.48/x
  3. Step 3: Cross multiply
    3,878.04x = 5,817.42 × 1,281.48
  4. Step 4: Simplify right side
    3,878.04x = 7,454,907.38
  5. Step 5: Solve for x
    x = 7,454,907.38/3,878.04
  6. Step 6: Final answer
    x = 1,922.34

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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.