Home / 5,529.40-7,630.44-3,171.39

Finding the Fourth Proportional to 5,529.40, 7,630.44 and 3,171.39

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Solution

The fourth proportional to 5,529.40, 7,630.44 and 3,171.39 is: 4,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,529.40 : 7,630.44 = 3,171.39 : x
  2. Step 2: Convert to fraction form
    5,529.40/7,630.44 = 3,171.39/x
  3. Step 3: Cross multiply
    5,529.40x = 7,630.44 × 3,171.39
  4. Step 4: Simplify right side
    5,529.40x = 24,199,101.11
  5. Step 5: Solve for x
    x = 24,199,101.11/5,529.40
  6. Step 6: Final answer
    x = 4,376.44

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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.