Home / 5,221.09-7,206.93-3,125.22

Finding the Fourth Proportional to 5,221.09, 7,206.93 and 3,125.22

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Solution

The fourth proportional to 5,221.09, 7,206.93 and 3,125.22 is: 4,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.09 : 7,206.93 = 3,125.22 : x
  2. Step 2: Convert to fraction form
    5,221.09/7,206.93 = 3,125.22/x
  3. Step 3: Cross multiply
    5,221.09x = 7,206.93 × 3,125.22
  4. Step 4: Simplify right side
    5,221.09x = 22,523,241.77
  5. Step 5: Solve for x
    x = 22,523,241.77/5,221.09
  6. Step 6: Final answer
    x = 4,313.90

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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.