Home / 1,790.32-2,681.35-1,293.58

Finding the Fourth Proportional to 1,790.32, 2,681.35 and 1,293.58

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Solution

The fourth proportional to 1,790.32, 2,681.35 and 1,293.58 is: 1,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.32 : 2,681.35 = 1,293.58 : x
  2. Step 2: Convert to fraction form
    1,790.32/2,681.35 = 1,293.58/x
  3. Step 3: Cross multiply
    1,790.32x = 2,681.35 × 1,293.58
  4. Step 4: Simplify right side
    1,790.32x = 3,468,540.73
  5. Step 5: Solve for x
    x = 3,468,540.73/1,790.32
  6. Step 6: Final answer
    x = 1,937.39

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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.