Home / 2,354.79-3,249.65-1,292.65

Finding the Fourth Proportional to 2,354.79, 3,249.65 and 1,292.65

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Solution

The fourth proportional to 2,354.79, 3,249.65 and 1,292.65 is: 1,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.79 : 3,249.65 = 1,292.65 : x
  2. Step 2: Convert to fraction form
    2,354.79/3,249.65 = 1,292.65/x
  3. Step 3: Cross multiply
    2,354.79x = 3,249.65 × 1,292.65
  4. Step 4: Simplify right side
    2,354.79x = 4,200,669.83
  5. Step 5: Solve for x
    x = 4,200,669.83/2,354.79
  6. Step 6: Final answer
    x = 1,783.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.