Home / 3,412.08-5,121-1,852.56

Finding the Fourth Proportional to 3,412.08, 5,121 and 1,852.56

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Solution

The fourth proportional to 3,412.08, 5,121 and 1,852.56 is: 2,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.08 : 5,121 = 1,852.56 : x
  2. Step 2: Convert to fraction form
    3,412.08/5,121 = 1,852.56/x
  3. Step 3: Cross multiply
    3,412.08x = 5,121 × 1,852.56
  4. Step 4: Simplify right side
    3,412.08x = 9,486,959.76
  5. Step 5: Solve for x
    x = 9,486,959.76/3,412.08
  6. Step 6: Final answer
    x = 2,780.40

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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.