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Finding the Fourth Proportional to 4,980.82, 7,472.44 and 1,860.98

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Solution

The fourth proportional to 4,980.82, 7,472.44 and 1,860.98 is: 2,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.82 : 7,472.44 = 1,860.98 : x
  2. Step 2: Convert to fraction form
    4,980.82/7,472.44 = 1,860.98/x
  3. Step 3: Cross multiply
    4,980.82x = 7,472.44 × 1,860.98
  4. Step 4: Simplify right side
    4,980.82x = 13,906,061.39
  5. Step 5: Solve for x
    x = 13,906,061.39/4,980.82
  6. Step 6: Final answer
    x = 2,791.92

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1.5x scale

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.