Home / 2,290.44-3,160.83-1,242.51

Finding the Fourth Proportional to 2,290.44, 3,160.83 and 1,242.51

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Solution

The fourth proportional to 2,290.44, 3,160.83 and 1,242.51 is: 1,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.44 : 3,160.83 = 1,242.51 : x
  2. Step 2: Convert to fraction form
    2,290.44/3,160.83 = 1,242.51/x
  3. Step 3: Cross multiply
    2,290.44x = 3,160.83 × 1,242.51
  4. Step 4: Simplify right side
    2,290.44x = 3,927,362.88
  5. Step 5: Solve for x
    x = 3,927,362.88/2,290.44
  6. Step 6: Final answer
    x = 1,714.68

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1.5x scale

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.