Home / 2,908.38-4,014.99-1,981.74

Finding the Fourth Proportional to 2,908.38, 4,014.99 and 1,981.74

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Solution

The fourth proportional to 2,908.38, 4,014.99 and 1,981.74 is: 2,735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.38 : 4,014.99 = 1,981.74 : x
  2. Step 2: Convert to fraction form
    2,908.38/4,014.99 = 1,981.74/x
  3. Step 3: Cross multiply
    2,908.38x = 4,014.99 × 1,981.74
  4. Step 4: Simplify right side
    2,908.38x = 7,956,666.28
  5. Step 5: Solve for x
    x = 7,956,666.28/2,908.38
  6. Step 6: Final answer
    x = 2,735.77

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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.