Home / 2,225.88-3,071.84-1,231.16

Finding the Fourth Proportional to 2,225.88, 3,071.84 and 1,231.16

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Solution

The fourth proportional to 2,225.88, 3,071.84 and 1,231.16 is: 1,699.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.88 : 3,071.84 = 1,231.16 : x
  2. Step 2: Convert to fraction form
    2,225.88/3,071.84 = 1,231.16/x
  3. Step 3: Cross multiply
    2,225.88x = 3,071.84 × 1,231.16
  4. Step 4: Simplify right side
    2,225.88x = 3,781,905.02
  5. Step 5: Solve for x
    x = 3,781,905.02/2,225.88
  6. Step 6: Final answer
    x = 1,699.06

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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.