Home / 1,859.11-2,789.35-1,513.31

Finding the Fourth Proportional to 1,859.11, 2,789.35 and 1,513.31

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Solution

The fourth proportional to 1,859.11, 2,789.35 and 1,513.31 is: 2,270.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.11 : 2,789.35 = 1,513.31 : x
  2. Step 2: Convert to fraction form
    1,859.11/2,789.35 = 1,513.31/x
  3. Step 3: Cross multiply
    1,859.11x = 2,789.35 × 1,513.31
  4. Step 4: Simplify right side
    1,859.11x = 4,221,133.52
  5. Step 5: Solve for x
    x = 4,221,133.52/1,859.11
  6. Step 6: Final answer
    x = 2,270.52

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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.