Home / 3,725.80-5,588.82-1,128.76

Finding the Fourth Proportional to 3,725.80, 5,588.82 and 1,128.76

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Solution

The fourth proportional to 3,725.80, 5,588.82 and 1,128.76 is: 1,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.80 : 5,588.82 = 1,128.76 : x
  2. Step 2: Convert to fraction form
    3,725.80/5,588.82 = 1,128.76/x
  3. Step 3: Cross multiply
    3,725.80x = 5,588.82 × 1,128.76
  4. Step 4: Simplify right side
    3,725.80x = 6,308,436.46
  5. Step 5: Solve for x
    x = 6,308,436.46/3,725.80
  6. Step 6: Final answer
    x = 1,693.18

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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.