Home / 4,712.18-7,071.91-1,791.32

Finding the Fourth Proportional to 4,712.18, 7,071.91 and 1,791.32

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Solution

The fourth proportional to 4,712.18, 7,071.91 and 1,791.32 is: 2,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,712.18 : 7,071.91 = 1,791.32 : x
  2. Step 2: Convert to fraction form
    4,712.18/7,071.91 = 1,791.32/x
  3. Step 3: Cross multiply
    4,712.18x = 7,071.91 × 1,791.32
  4. Step 4: Simplify right side
    4,712.18x = 12,668,013.98
  5. Step 5: Solve for x
    x = 12,668,013.98/4,712.18
  6. Step 6: Final answer
    x = 2,688.36

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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.