Home / 5,071.31-7,603.05-3,218.57

Finding the Fourth Proportional to 5,071.31, 7,603.05 and 3,218.57

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Solution

The fourth proportional to 5,071.31, 7,603.05 and 3,218.57 is: 4,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071.31 : 7,603.05 = 3,218.57 : x
  2. Step 2: Convert to fraction form
    5,071.31/7,603.05 = 3,218.57/x
  3. Step 3: Cross multiply
    5,071.31x = 7,603.05 × 3,218.57
  4. Step 4: Simplify right side
    5,071.31x = 24,470,948.64
  5. Step 5: Solve for x
    x = 24,470,948.64/5,071.31
  6. Step 6: Final answer
    x = 4,825.37

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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.