Home / 5,217.40-7,195.98-3,119.32

Finding the Fourth Proportional to 5,217.40, 7,195.98 and 3,119.32

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Solution

The fourth proportional to 5,217.40, 7,195.98 and 3,119.32 is: 4,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.40 : 7,195.98 = 3,119.32 : x
  2. Step 2: Convert to fraction form
    5,217.40/7,195.98 = 3,119.32/x
  3. Step 3: Cross multiply
    5,217.40x = 7,195.98 × 3,119.32
  4. Step 4: Simplify right side
    5,217.40x = 22,446,564.33
  5. Step 5: Solve for x
    x = 22,446,564.33/5,217.40
  6. Step 6: Final answer
    x = 4,302.25

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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.