Home / 2,120.84-3,181.10-950.91

Finding the Fourth Proportional to 2,120.84, 3,181.10 and 950.91

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Solution

The fourth proportional to 2,120.84, 3,181.10 and 950.91 is: 1,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.84 : 3,181.10 = 950.91 : x
  2. Step 2: Convert to fraction form
    2,120.84/3,181.10 = 950.91/x
  3. Step 3: Cross multiply
    2,120.84x = 3,181.10 × 950.91
  4. Step 4: Simplify right side
    2,120.84x = 3,024,935.05
  5. Step 5: Solve for x
    x = 3,024,935.05/2,120.84
  6. Step 6: Final answer
    x = 1,426.29

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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.