Home / 3,071.22-4,606.29-991.14

Finding the Fourth Proportional to 3,071.22, 4,606.29 and 991.14

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Solution

The fourth proportional to 3,071.22, 4,606.29 and 991.14 is: 1,486.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.22 : 4,606.29 = 991.14 : x
  2. Step 2: Convert to fraction form
    3,071.22/4,606.29 = 991.14/x
  3. Step 3: Cross multiply
    3,071.22x = 4,606.29 × 991.14
  4. Step 4: Simplify right side
    3,071.22x = 4,565,478.27
  5. Step 5: Solve for x
    x = 4,565,478.27/3,071.22
  6. Step 6: Final answer
    x = 1,486.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.