Home / 7,197.90-9,930.60-4,212.66

Finding the Fourth Proportional to 7,197.90, 9,930.60 and 4,212.66

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Solution

The fourth proportional to 7,197.90, 9,930.60 and 4,212.66 is: 5,812.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,197.90 : 9,930.60 = 4,212.66 : x
  2. Step 2: Convert to fraction form
    7,197.90/9,930.60 = 4,212.66/x
  3. Step 3: Cross multiply
    7,197.90x = 9,930.60 × 4,212.66
  4. Step 4: Simplify right side
    7,197.90x = 41,834,241.40
  5. Step 5: Solve for x
    x = 41,834,241.40/7,197.90
  6. Step 6: Final answer
    x = 5,812.01

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1.5x scale

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.