Home / 3,029.01-4,178.16-1,981.05

Finding the Fourth Proportional to 3,029.01, 4,178.16 and 1,981.05

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Solution

The fourth proportional to 3,029.01, 4,178.16 and 1,981.05 is: 2,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,029.01 : 4,178.16 = 1,981.05 : x
  2. Step 2: Convert to fraction form
    3,029.01/4,178.16 = 1,981.05/x
  3. Step 3: Cross multiply
    3,029.01x = 4,178.16 × 1,981.05
  4. Step 4: Simplify right side
    3,029.01x = 8,277,143.87
  5. Step 5: Solve for x
    x = 8,277,143.87/3,029.01
  6. Step 6: Final answer
    x = 2,732.62

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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.