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Finding the Fourth Proportional to 3,006.72, 4,510.08 and 1,980.48

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Solution

The fourth proportional to 3,006.72, 4,510.08 and 1,980.48 is: 2,970.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.72 : 4,510.08 = 1,980.48 : x
  2. Step 2: Convert to fraction form
    3,006.72/4,510.08 = 1,980.48/x
  3. Step 3: Cross multiply
    3,006.72x = 4,510.08 × 1,980.48
  4. Step 4: Simplify right side
    3,006.72x = 8,932,123.24
  5. Step 5: Solve for x
    x = 8,932,123.24/3,006.72
  6. Step 6: Final answer
    x = 2,970.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.