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Finding the Fourth Proportional to 4,900.03, 7,351.43 and 1,980.38

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Solution

The fourth proportional to 4,900.03, 7,351.43 and 1,980.38 is: 2,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.03 : 7,351.43 = 1,980.38 : x
  2. Step 2: Convert to fraction form
    4,900.03/7,351.43 = 1,980.38/x
  3. Step 3: Cross multiply
    4,900.03x = 7,351.43 × 1,980.38
  4. Step 4: Simplify right side
    4,900.03x = 14,558,633.42
  5. Step 5: Solve for x
    x = 14,558,633.42/4,900.03
  6. Step 6: Final answer
    x = 2,971.13

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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.