Home / 3,759.62-5,638.58-1,127.06

Finding the Fourth Proportional to 3,759.62, 5,638.58 and 1,127.06

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Solution

The fourth proportional to 3,759.62, 5,638.58 and 1,127.06 is: 1,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.62 : 5,638.58 = 1,127.06 : x
  2. Step 2: Convert to fraction form
    3,759.62/5,638.58 = 1,127.06/x
  3. Step 3: Cross multiply
    3,759.62x = 5,638.58 × 1,127.06
  4. Step 4: Simplify right side
    3,759.62x = 6,355,017.97
  5. Step 5: Solve for x
    x = 6,355,017.97/3,759.62
  6. Step 6: Final answer
    x = 1,690.34

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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.