Home / 3,687.04-5,087.28-2,114.32

Finding the Fourth Proportional to 3,687.04, 5,087.28 and 2,114.32

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Solution

The fourth proportional to 3,687.04, 5,087.28 and 2,114.32 is: 2,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.04 : 5,087.28 = 2,114.32 : x
  2. Step 2: Convert to fraction form
    3,687.04/5,087.28 = 2,114.32/x
  3. Step 3: Cross multiply
    3,687.04x = 5,087.28 × 2,114.32
  4. Step 4: Simplify right side
    3,687.04x = 10,756,137.85
  5. Step 5: Solve for x
    x = 10,756,137.85/3,687.04
  6. Step 6: Final answer
    x = 2,917.28

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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.