Home / 2,290.22-3,160.51-1,242.29

Finding the Fourth Proportional to 2,290.22, 3,160.51 and 1,242.29

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Solution

The fourth proportional to 2,290.22, 3,160.51 and 1,242.29 is: 1,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.22 : 3,160.51 = 1,242.29 : x
  2. Step 2: Convert to fraction form
    2,290.22/3,160.51 = 1,242.29/x
  3. Step 3: Cross multiply
    2,290.22x = 3,160.51 × 1,242.29
  4. Step 4: Simplify right side
    2,290.22x = 3,926,269.97
  5. Step 5: Solve for x
    x = 3,926,269.97/2,290.22
  6. Step 6: Final answer
    x = 1,714.36

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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.