Home / 1,730.55-2,387.96-974.31

Finding the Fourth Proportional to 1,730.55, 2,387.96 and 974.31

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Solution

The fourth proportional to 1,730.55, 2,387.96 and 974.31 is: 1,344.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.55 : 2,387.96 = 974.31 : x
  2. Step 2: Convert to fraction form
    1,730.55/2,387.96 = 974.31/x
  3. Step 3: Cross multiply
    1,730.55x = 2,387.96 × 974.31
  4. Step 4: Simplify right side
    1,730.55x = 2,326,608.44
  5. Step 5: Solve for x
    x = 2,326,608.44/1,730.55
  6. Step 6: Final answer
    x = 1,344.43

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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.