Home / 3,725.63-5,588.45-1,128.50

Finding the Fourth Proportional to 3,725.63, 5,588.45 and 1,128.50

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Solution

The fourth proportional to 3,725.63, 5,588.45 and 1,128.50 is: 1,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.63 : 5,588.45 = 1,128.50 : x
  2. Step 2: Convert to fraction form
    3,725.63/5,588.45 = 1,128.50/x
  3. Step 3: Cross multiply
    3,725.63x = 5,588.45 × 1,128.50
  4. Step 4: Simplify right side
    3,725.63x = 6,306,560.18
  5. Step 5: Solve for x
    x = 6,306,560.18/3,725.63
  6. Step 6: Final answer
    x = 1,692.75

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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.