Home / 3,759.05-5,638.86-1,260.25

Finding the Fourth Proportional to 3,759.05, 5,638.86 and 1,260.25

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Solution

The fourth proportional to 3,759.05, 5,638.86 and 1,260.25 is: 1,890.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.05 : 5,638.86 = 1,260.25 : x
  2. Step 2: Convert to fraction form
    3,759.05/5,638.86 = 1,260.25/x
  3. Step 3: Cross multiply
    3,759.05x = 5,638.86 × 1,260.25
  4. Step 4: Simplify right side
    3,759.05x = 7,106,345.12
  5. Step 5: Solve for x
    x = 7,106,345.12/3,759.05
  6. Step 6: Final answer
    x = 1,890.47

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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.