Home / 2,290.45-3,160.98-1,729.93

Finding the Fourth Proportional to 2,290.45, 3,160.98 and 1,729.93

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Solution

The fourth proportional to 2,290.45, 3,160.98 and 1,729.93 is: 2,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.45 : 3,160.98 = 1,729.93 : x
  2. Step 2: Convert to fraction form
    2,290.45/3,160.98 = 1,729.93/x
  3. Step 3: Cross multiply
    2,290.45x = 3,160.98 × 1,729.93
  4. Step 4: Simplify right side
    2,290.45x = 5,468,274.13
  5. Step 5: Solve for x
    x = 5,468,274.13/2,290.45
  6. Step 6: Final answer
    x = 2,387.42

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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.