Home / 5,128.47-7,692.69-1,232.87

Finding the Fourth Proportional to 5,128.47, 7,692.69 and 1,232.87

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Solution

The fourth proportional to 5,128.47, 7,692.69 and 1,232.87 is: 1,849.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.47 : 7,692.69 = 1,232.87 : x
  2. Step 2: Convert to fraction form
    5,128.47/7,692.69 = 1,232.87/x
  3. Step 3: Cross multiply
    5,128.47x = 7,692.69 × 1,232.87
  4. Step 4: Simplify right side
    5,128.47x = 9,484,110.58
  5. Step 5: Solve for x
    x = 9,484,110.58/5,128.47
  6. Step 6: Final answer
    x = 1,849.31

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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.