Home / 1,992.04-2,749.31-1,434.35

Finding the Fourth Proportional to 1,992.04, 2,749.31 and 1,434.35

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Solution

The fourth proportional to 1,992.04, 2,749.31 and 1,434.35 is: 1,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.04 : 2,749.31 = 1,434.35 : x
  2. Step 2: Convert to fraction form
    1,992.04/2,749.31 = 1,434.35/x
  3. Step 3: Cross multiply
    1,992.04x = 2,749.31 × 1,434.35
  4. Step 4: Simplify right side
    1,992.04x = 3,943,472.80
  5. Step 5: Solve for x
    x = 3,943,472.80/1,992.04
  6. Step 6: Final answer
    x = 1,979.62

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1.5x scale

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.