Home / 2,908.32-4,362.36-1,981.56

Finding the Fourth Proportional to 2,908.32, 4,362.36 and 1,981.56

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Solution

The fourth proportional to 2,908.32, 4,362.36 and 1,981.56 is: 2,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.32 : 4,362.36 = 1,981.56 : x
  2. Step 2: Convert to fraction form
    2,908.32/4,362.36 = 1,981.56/x
  3. Step 3: Cross multiply
    2,908.32x = 4,362.36 × 1,981.56
  4. Step 4: Simplify right side
    2,908.32x = 8,644,278.08
  5. Step 5: Solve for x
    x = 8,644,278.08/2,908.32
  6. Step 6: Final answer
    x = 2,972.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.