Home / 2,087.94-3,119.67-2,015.28

Finding the Fourth Proportional to 2,087.94, 3,119.67 and 2,015.28

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Solution

The fourth proportional to 2,087.94, 3,119.67 and 2,015.28 is: 3,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.94 : 3,119.67 = 2,015.28 : x
  2. Step 2: Convert to fraction form
    2,087.94/3,119.67 = 2,015.28/x
  3. Step 3: Cross multiply
    2,087.94x = 3,119.67 × 2,015.28
  4. Step 4: Simplify right side
    2,087.94x = 6,287,008.56
  5. Step 5: Solve for x
    x = 6,287,008.56/2,087.94
  6. Step 6: Final answer
    x = 3,011.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.