Home / 1,964.90-2,711.50-1,114.30

Finding the Fourth Proportional to 1,964.90, 2,711.50 and 1,114.30

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Solution

The fourth proportional to 1,964.90, 2,711.50 and 1,114.30 is: 1,537.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.90 : 2,711.50 = 1,114.30 : x
  2. Step 2: Convert to fraction form
    1,964.90/2,711.50 = 1,114.30/x
  3. Step 3: Cross multiply
    1,964.90x = 2,711.50 × 1,114.30
  4. Step 4: Simplify right side
    1,964.90x = 3,021,435.01
  5. Step 5: Solve for x
    x = 3,021,435.01/1,964.90
  6. Step 6: Final answer
    x = 1,537.71

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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.