Home / 5,219.15-7,203.80-3,228.57

Finding the Fourth Proportional to 5,219.15, 7,203.80 and 3,228.57

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Solution

The fourth proportional to 5,219.15, 7,203.80 and 3,228.57 is: 4,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.15 : 7,203.80 = 3,228.57 : x
  2. Step 2: Convert to fraction form
    5,219.15/7,203.80 = 3,228.57/x
  3. Step 3: Cross multiply
    5,219.15x = 7,203.80 × 3,228.57
  4. Step 4: Simplify right side
    5,219.15x = 23,257,980.64
  5. Step 5: Solve for x
    x = 23,257,980.64/5,219.15
  6. Step 6: Final answer
    x = 4,456.28

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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.