Home / 2,015.06-3,005.85-1,981.65

Finding the Fourth Proportional to 2,015.06, 3,005.85 and 1,981.65

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Solution

The fourth proportional to 2,015.06, 3,005.85 and 1,981.65 is: 2,956.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.06 : 3,005.85 = 1,981.65 : x
  2. Step 2: Convert to fraction form
    2,015.06/3,005.85 = 1,981.65/x
  3. Step 3: Cross multiply
    2,015.06x = 3,005.85 × 1,981.65
  4. Step 4: Simplify right side
    2,015.06x = 5,956,542.65
  5. Step 5: Solve for x
    x = 5,956,542.65/2,015.06
  6. Step 6: Final answer
    x = 2,956.01

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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.