Home / 5,125.25-7,071.59-3,420.41

Finding the Fourth Proportional to 5,125.25, 7,071.59 and 3,420.41

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Solution

The fourth proportional to 5,125.25, 7,071.59 and 3,420.41 is: 4,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.25 : 7,071.59 = 3,420.41 : x
  2. Step 2: Convert to fraction form
    5,125.25/7,071.59 = 3,420.41/x
  3. Step 3: Cross multiply
    5,125.25x = 7,071.59 × 3,420.41
  4. Step 4: Simplify right side
    5,125.25x = 24,187,737.15
  5. Step 5: Solve for x
    x = 24,187,737.15/5,125.25
  6. Step 6: Final answer
    x = 4,719.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.