Home / 3,887.19-5,364.45-2,208.53

Finding the Fourth Proportional to 3,887.19, 5,364.45 and 2,208.53

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Solution

The fourth proportional to 3,887.19, 5,364.45 and 2,208.53 is: 3,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.19 : 5,364.45 = 2,208.53 : x
  2. Step 2: Convert to fraction form
    3,887.19/5,364.45 = 2,208.53/x
  3. Step 3: Cross multiply
    3,887.19x = 5,364.45 × 2,208.53
  4. Step 4: Simplify right side
    3,887.19x = 11,847,562.17
  5. Step 5: Solve for x
    x = 11,847,562.17/3,887.19
  6. Step 6: Final answer
    x = 3,047.85

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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.