Home / 2,789.90-3,849.94-1,530.93

Finding the Fourth Proportional to 2,789.90, 3,849.94 and 1,530.93

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Solution

The fourth proportional to 2,789.90, 3,849.94 and 1,530.93 is: 2,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.90 : 3,849.94 = 1,530.93 : x
  2. Step 2: Convert to fraction form
    2,789.90/3,849.94 = 1,530.93/x
  3. Step 3: Cross multiply
    2,789.90x = 3,849.94 × 1,530.93
  4. Step 4: Simplify right side
    2,789.90x = 5,893,988.64
  5. Step 5: Solve for x
    x = 5,893,988.64/2,789.90
  6. Step 6: Final answer
    x = 2,112.62

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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.