Home / 2,548.04-3,821.22-1,315.28

Finding the Fourth Proportional to 2,548.04, 3,821.22 and 1,315.28

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Solution

The fourth proportional to 2,548.04, 3,821.22 and 1,315.28 is: 1,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.04 : 3,821.22 = 1,315.28 : x
  2. Step 2: Convert to fraction form
    2,548.04/3,821.22 = 1,315.28/x
  3. Step 3: Cross multiply
    2,548.04x = 3,821.22 × 1,315.28
  4. Step 4: Simplify right side
    2,548.04x = 5,025,974.24
  5. Step 5: Solve for x
    x = 5,025,974.24/2,548.04
  6. Step 6: Final answer
    x = 1,972.49

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1.5x scale

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.