Home / 5,208.08-7,185.12-3,215.18

Finding the Fourth Proportional to 5,208.08, 7,185.12 and 3,215.18

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Solution

The fourth proportional to 5,208.08, 7,185.12 and 3,215.18 is: 4,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.08 : 7,185.12 = 3,215.18 : x
  2. Step 2: Convert to fraction form
    5,208.08/7,185.12 = 3,215.18/x
  3. Step 3: Cross multiply
    5,208.08x = 7,185.12 × 3,215.18
  4. Step 4: Simplify right side
    5,208.08x = 23,101,454.12
  5. Step 5: Solve for x
    x = 23,101,454.12/5,208.08
  6. Step 6: Final answer
    x = 4,435.69

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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.