Home / 3,418.80-5,124.84-1,857.42

Finding the Fourth Proportional to 3,418.80, 5,124.84 and 1,857.42

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Solution

The fourth proportional to 3,418.80, 5,124.84 and 1,857.42 is: 2,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.80 : 5,124.84 = 1,857.42 : x
  2. Step 2: Convert to fraction form
    3,418.80/5,124.84 = 1,857.42/x
  3. Step 3: Cross multiply
    3,418.80x = 5,124.84 × 1,857.42
  4. Step 4: Simplify right side
    3,418.80x = 9,518,980.31
  5. Step 5: Solve for x
    x = 9,518,980.31/3,418.80
  6. Step 6: Final answer
    x = 2,784.30

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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.