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Finding the Fourth Proportional to 2,993.60, 4,491.12 and 1,762

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Solution

The fourth proportional to 2,993.60, 4,491.12 and 1,762 is: 2,643.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.60 : 4,491.12 = 1,762 : x
  2. Step 2: Convert to fraction form
    2,993.60/4,491.12 = 1,762/x
  3. Step 3: Cross multiply
    2,993.60x = 4,491.12 × 1,762
  4. Step 4: Simplify right side
    2,993.60x = 7,913,353.44
  5. Step 5: Solve for x
    x = 7,913,353.44/2,993.60
  6. Step 6: Final answer
    x = 2,643.42

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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.