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Finding the Fourth Proportional to 4,653.72, 6,980.92 and 1,880.42

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Solution

The fourth proportional to 4,653.72, 6,980.92 and 1,880.42 is: 2,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,653.72 : 6,980.92 = 1,880.42 : x
  2. Step 2: Convert to fraction form
    4,653.72/6,980.92 = 1,880.42/x
  3. Step 3: Cross multiply
    4,653.72x = 6,980.92 × 1,880.42
  4. Step 4: Simplify right side
    4,653.72x = 13,127,021.98
  5. Step 5: Solve for x
    x = 13,127,021.98/4,653.72
  6. Step 6: Final answer
    x = 2,820.76

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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.