Home / 3,726.09-5,588.40-1,128.42

Finding the Fourth Proportional to 3,726.09, 5,588.40 and 1,128.42

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Solution

The fourth proportional to 3,726.09, 5,588.40 and 1,128.42 is: 1,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.09 : 5,588.40 = 1,128.42 : x
  2. Step 2: Convert to fraction form
    3,726.09/5,588.40 = 1,128.42/x
  3. Step 3: Cross multiply
    3,726.09x = 5,588.40 × 1,128.42
  4. Step 4: Simplify right side
    3,726.09x = 6,306,062.33
  5. Step 5: Solve for x
    x = 6,306,062.33/3,726.09
  6. Step 6: Final answer
    x = 1,692.41

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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.