Home / 1,961.08-2,940.90-574.06

Finding the Fourth Proportional to 1,961.08, 2,940.90 and 574.06

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Solution

The fourth proportional to 1,961.08, 2,940.90 and 574.06 is: 860.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.08 : 2,940.90 = 574.06 : x
  2. Step 2: Convert to fraction form
    1,961.08/2,940.90 = 574.06/x
  3. Step 3: Cross multiply
    1,961.08x = 2,940.90 × 574.06
  4. Step 4: Simplify right side
    1,961.08x = 1,688,253.05
  5. Step 5: Solve for x
    x = 1,688,253.05/1,961.08
  6. Step 6: Final answer
    x = 860.88

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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.