Home / 2,320.45-3,480.98-1,224.90

Finding the Fourth Proportional to 2,320.45, 3,480.98 and 1,224.90

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Solution

The fourth proportional to 2,320.45, 3,480.98 and 1,224.90 is: 1,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.45 : 3,480.98 = 1,224.90 : x
  2. Step 2: Convert to fraction form
    2,320.45/3,480.98 = 1,224.90/x
  3. Step 3: Cross multiply
    2,320.45x = 3,480.98 × 1,224.90
  4. Step 4: Simplify right side
    2,320.45x = 4,263,846.28
  5. Step 5: Solve for x
    x = 4,263,846.28/2,320.45
  6. Step 6: Final answer
    x = 1,837.51

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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.