Home / 2,412.35-3,615.65-1,242.92

Finding the Fourth Proportional to 2,412.35, 3,615.65 and 1,242.92

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Solution

The fourth proportional to 2,412.35, 3,615.65 and 1,242.92 is: 1,862.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.35 : 3,615.65 = 1,242.92 : x
  2. Step 2: Convert to fraction form
    2,412.35/3,615.65 = 1,242.92/x
  3. Step 3: Cross multiply
    2,412.35x = 3,615.65 × 1,242.92
  4. Step 4: Simplify right side
    2,412.35x = 4,493,947.35
  5. Step 5: Solve for x
    x = 4,493,947.35/2,412.35
  6. Step 6: Final answer
    x = 1,862.89

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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.