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Finding the Fourth Proportional to 3,245.61, 4,866.46 and 1,488.41

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Solution

The fourth proportional to 3,245.61, 4,866.46 and 1,488.41 is: 2,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.61 : 4,866.46 = 1,488.41 : x
  2. Step 2: Convert to fraction form
    3,245.61/4,866.46 = 1,488.41/x
  3. Step 3: Cross multiply
    3,245.61x = 4,866.46 × 1,488.41
  4. Step 4: Simplify right side
    3,245.61x = 7,243,274.04
  5. Step 5: Solve for x
    x = 7,243,274.04/3,245.61
  6. Step 6: Final answer
    x = 2,231.72

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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.