Home / 3,191.10-4,784.49-1,242.30

Finding the Fourth Proportional to 3,191.10, 4,784.49 and 1,242.30

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Solution

The fourth proportional to 3,191.10, 4,784.49 and 1,242.30 is: 1,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.10 : 4,784.49 = 1,242.30 : x
  2. Step 2: Convert to fraction form
    3,191.10/4,784.49 = 1,242.30/x
  3. Step 3: Cross multiply
    3,191.10x = 4,784.49 × 1,242.30
  4. Step 4: Simplify right side
    3,191.10x = 5,943,771.93
  5. Step 5: Solve for x
    x = 5,943,771.93/3,191.10
  6. Step 6: Final answer
    x = 1,862.61

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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.