Home / 2,231.32-3,077.90-1,346.60

Finding the Fourth Proportional to 2,231.32, 3,077.90 and 1,346.60

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Solution

The fourth proportional to 2,231.32, 3,077.90 and 1,346.60 is: 1,857.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.32 : 3,077.90 = 1,346.60 : x
  2. Step 2: Convert to fraction form
    2,231.32/3,077.90 = 1,346.60/x
  3. Step 3: Cross multiply
    2,231.32x = 3,077.90 × 1,346.60
  4. Step 4: Simplify right side
    2,231.32x = 4,144,700.14
  5. Step 5: Solve for x
    x = 4,144,700.14/2,231.32
  6. Step 6: Final answer
    x = 1,857.51

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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.