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Finding the Fourth Proportional to 2,900.61, 4,002.82 and 2,480.42

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Solution

The fourth proportional to 2,900.61, 4,002.82 and 2,480.42 is: 3,422.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.61 : 4,002.82 = 2,480.42 : x
  2. Step 2: Convert to fraction form
    2,900.61/4,002.82 = 2,480.42/x
  3. Step 3: Cross multiply
    2,900.61x = 4,002.82 × 2,480.42
  4. Step 4: Simplify right side
    2,900.61x = 9,928,678.59
  5. Step 5: Solve for x
    x = 9,928,678.59/2,900.61
  6. Step 6: Final answer
    x = 3,422.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.