Home / 1,730.90-2,387.80-1,067.34

Finding the Fourth Proportional to 1,730.90, 2,387.80 and 1,067.34

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Solution

The fourth proportional to 1,730.90, 2,387.80 and 1,067.34 is: 1,472.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.90 : 2,387.80 = 1,067.34 : x
  2. Step 2: Convert to fraction form
    1,730.90/2,387.80 = 1,067.34/x
  3. Step 3: Cross multiply
    1,730.90x = 2,387.80 × 1,067.34
  4. Step 4: Simplify right side
    1,730.90x = 2,548,594.45
  5. Step 5: Solve for x
    x = 2,548,594.45/1,730.90
  6. Step 6: Final answer
    x = 1,472.41

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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.