Home / 2,290.21-3,160.66-1,295.59

Finding the Fourth Proportional to 2,290.21, 3,160.66 and 1,295.59

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Solution

The fourth proportional to 2,290.21, 3,160.66 and 1,295.59 is: 1,788.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.21 : 3,160.66 = 1,295.59 : x
  2. Step 2: Convert to fraction form
    2,290.21/3,160.66 = 1,295.59/x
  3. Step 3: Cross multiply
    2,290.21x = 3,160.66 × 1,295.59
  4. Step 4: Simplify right side
    2,290.21x = 4,094,919.49
  5. Step 5: Solve for x
    x = 4,094,919.49/2,290.21
  6. Step 6: Final answer
    x = 1,788.01

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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.