Home / 3,725.82-5,588.74-1,128.78

Finding the Fourth Proportional to 3,725.82, 5,588.74 and 1,128.78

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Solution

The fourth proportional to 3,725.82, 5,588.74 and 1,128.78 is: 1,693.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.82 : 5,588.74 = 1,128.78 : x
  2. Step 2: Convert to fraction form
    3,725.82/5,588.74 = 1,128.78/x
  3. Step 3: Cross multiply
    3,725.82x = 5,588.74 × 1,128.78
  4. Step 4: Simplify right side
    3,725.82x = 6,308,457.94
  5. Step 5: Solve for x
    x = 6,308,457.94/3,725.82
  6. Step 6: Final answer
    x = 1,693.17

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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.