Home / 3,887.08-5,362.88-2,208.32

Finding the Fourth Proportional to 3,887.08, 5,362.88 and 2,208.32

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Solution

The fourth proportional to 3,887.08, 5,362.88 and 2,208.32 is: 3,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.08 : 5,362.88 = 2,208.32 : x
  2. Step 2: Convert to fraction form
    3,887.08/5,362.88 = 2,208.32/x
  3. Step 3: Cross multiply
    3,887.08x = 5,362.88 × 2,208.32
  4. Step 4: Simplify right side
    3,887.08x = 11,842,955.16
  5. Step 5: Solve for x
    x = 11,842,955.16/3,887.08
  6. Step 6: Final answer
    x = 3,046.75

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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.