Home / 2,290.34-3,160.58-1,394.90

Finding the Fourth Proportional to 2,290.34, 3,160.58 and 1,394.90

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Solution

The fourth proportional to 2,290.34, 3,160.58 and 1,394.90 is: 1,924.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.34 : 3,160.58 = 1,394.90 : x
  2. Step 2: Convert to fraction form
    2,290.34/3,160.58 = 1,394.90/x
  3. Step 3: Cross multiply
    2,290.34x = 3,160.58 × 1,394.90
  4. Step 4: Simplify right side
    2,290.34x = 4,408,693.04
  5. Step 5: Solve for x
    x = 4,408,693.04/2,290.34
  6. Step 6: Final answer
    x = 1,924.91

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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.