Home / 5,128.34-7,692.51-1,232.75

Finding the Fourth Proportional to 5,128.34, 7,692.51 and 1,232.75

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Solution

The fourth proportional to 5,128.34, 7,692.51 and 1,232.75 is: 1,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.34 : 7,692.51 = 1,232.75 : x
  2. Step 2: Convert to fraction form
    5,128.34/7,692.51 = 1,232.75/x
  3. Step 3: Cross multiply
    5,128.34x = 7,692.51 × 1,232.75
  4. Step 4: Simplify right side
    5,128.34x = 9,482,912.09
  5. Step 5: Solve for x
    x = 9,482,912.09/5,128.34
  6. Step 6: Final answer
    x = 1,849.12

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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.