Home / 5,071.08-7,605.30-2,147.88

Finding the Fourth Proportional to 5,071.08, 7,605.30 and 2,147.88

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Solution

The fourth proportional to 5,071.08, 7,605.30 and 2,147.88 is: 3,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071.08 : 7,605.30 = 2,147.88 : x
  2. Step 2: Convert to fraction form
    5,071.08/7,605.30 = 2,147.88/x
  3. Step 3: Cross multiply
    5,071.08x = 7,605.30 × 2,147.88
  4. Step 4: Simplify right side
    5,071.08x = 16,335,271.76
  5. Step 5: Solve for x
    x = 16,335,271.76/5,071.08
  6. Step 6: Final answer
    x = 3,221.26

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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.