Home / 2,945.13-4,419.71-1,213.75

Finding the Fourth Proportional to 2,945.13, 4,419.71 and 1,213.75

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Solution

The fourth proportional to 2,945.13, 4,419.71 and 1,213.75 is: 1,821.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.13 : 4,419.71 = 1,213.75 : x
  2. Step 2: Convert to fraction form
    2,945.13/4,419.71 = 1,213.75/x
  3. Step 3: Cross multiply
    2,945.13x = 4,419.71 × 1,213.75
  4. Step 4: Simplify right side
    2,945.13x = 5,364,423.01
  5. Step 5: Solve for x
    x = 5,364,423.01/2,945.13
  6. Step 6: Final answer
    x = 1,821.46

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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.