Home / 2,922.28-4,033.56-1,803.40

Finding the Fourth Proportional to 2,922.28, 4,033.56 and 1,803.40

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Solution

The fourth proportional to 2,922.28, 4,033.56 and 1,803.40 is: 2,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.28 : 4,033.56 = 1,803.40 : x
  2. Step 2: Convert to fraction form
    2,922.28/4,033.56 = 1,803.40/x
  3. Step 3: Cross multiply
    2,922.28x = 4,033.56 × 1,803.40
  4. Step 4: Simplify right side
    2,922.28x = 7,274,122.10
  5. Step 5: Solve for x
    x = 7,274,122.10/2,922.28
  6. Step 6: Final answer
    x = 2,489.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.