Home / 2,231.17-3,079.01-1,346.80

Finding the Fourth Proportional to 2,231.17, 3,079.01 and 1,346.80

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Solution

The fourth proportional to 2,231.17, 3,079.01 and 1,346.80 is: 1,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.17 : 3,079.01 = 1,346.80 : x
  2. Step 2: Convert to fraction form
    2,231.17/3,079.01 = 1,346.80/x
  3. Step 3: Cross multiply
    2,231.17x = 3,079.01 × 1,346.80
  4. Step 4: Simplify right side
    2,231.17x = 4,146,788.54
  5. Step 5: Solve for x
    x = 4,146,788.54/2,231.17
  6. Step 6: Final answer
    x = 1,858.58

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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.