Home / 3,408.02-5,109.63-1,326.27

Finding the Fourth Proportional to 3,408.02, 5,109.63 and 1,326.27

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Solution

The fourth proportional to 3,408.02, 5,109.63 and 1,326.27 is: 1,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.02 : 5,109.63 = 1,326.27 : x
  2. Step 2: Convert to fraction form
    3,408.02/5,109.63 = 1,326.27/x
  3. Step 3: Cross multiply
    3,408.02x = 5,109.63 × 1,326.27
  4. Step 4: Simplify right side
    3,408.02x = 6,776,726.75
  5. Step 5: Solve for x
    x = 6,776,726.75/3,408.02
  6. Step 6: Final answer
    x = 1,988.47

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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.