Home / 2,922.02-4,378.17-1,276.10

Finding the Fourth Proportional to 2,922.02, 4,378.17 and 1,276.10

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Solution

The fourth proportional to 2,922.02, 4,378.17 and 1,276.10 is: 1,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.02 : 4,378.17 = 1,276.10 : x
  2. Step 2: Convert to fraction form
    2,922.02/4,378.17 = 1,276.10/x
  3. Step 3: Cross multiply
    2,922.02x = 4,378.17 × 1,276.10
  4. Step 4: Simplify right side
    2,922.02x = 5,586,982.74
  5. Step 5: Solve for x
    x = 5,586,982.74/2,922.02
  6. Step 6: Final answer
    x = 1,912.03

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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.