Home / 7,212-9,949.08-4,225.98

Finding the Fourth Proportional to 7,212, 9,949.08 and 4,225.98

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Solution

The fourth proportional to 7,212, 9,949.08 and 4,225.98 is: 5,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212 : 9,949.08 = 4,225.98 : x
  2. Step 2: Convert to fraction form
    7,212/9,949.08 = 4,225.98/x
  3. Step 3: Cross multiply
    7,212x = 9,949.08 × 4,225.98
  4. Step 4: Simplify right side
    7,212x = 42,044,613.10
  5. Step 5: Solve for x
    x = 42,044,613.10/7,212
  6. Step 6: Final answer
    x = 5,829.81

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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.