Home / 2,290.47-3,160.86-1,295.73

Finding the Fourth Proportional to 2,290.47, 3,160.86 and 1,295.73

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Solution

The fourth proportional to 2,290.47, 3,160.86 and 1,295.73 is: 1,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.47 : 3,160.86 = 1,295.73 : x
  2. Step 2: Convert to fraction form
    2,290.47/3,160.86 = 1,295.73/x
  3. Step 3: Cross multiply
    2,290.47x = 3,160.86 × 1,295.73
  4. Step 4: Simplify right side
    2,290.47x = 4,095,606.58
  5. Step 5: Solve for x
    x = 4,095,606.58/2,290.47
  6. Step 6: Final answer
    x = 1,788.11

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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.