Home / 2,949.61-4,420.76-1,489.18

Finding the Fourth Proportional to 2,949.61, 4,420.76 and 1,489.18

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Solution

The fourth proportional to 2,949.61, 4,420.76 and 1,489.18 is: 2,231.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.61 : 4,420.76 = 1,489.18 : x
  2. Step 2: Convert to fraction form
    2,949.61/4,420.76 = 1,489.18/x
  3. Step 3: Cross multiply
    2,949.61x = 4,420.76 × 1,489.18
  4. Step 4: Simplify right side
    2,949.61x = 6,583,285.27
  5. Step 5: Solve for x
    x = 6,583,285.27/2,949.61
  6. Step 6: Final answer
    x = 2,231.92

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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.