Home / 2,320.09-3,480.29-1,021.56

Finding the Fourth Proportional to 2,320.09, 3,480.29 and 1,021.56

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Solution

The fourth proportional to 2,320.09, 3,480.29 and 1,021.56 is: 1,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.09 : 3,480.29 = 1,021.56 : x
  2. Step 2: Convert to fraction form
    2,320.09/3,480.29 = 1,021.56/x
  3. Step 3: Cross multiply
    2,320.09x = 3,480.29 × 1,021.56
  4. Step 4: Simplify right side
    2,320.09x = 3,555,325.05
  5. Step 5: Solve for x
    x = 3,555,325.05/2,320.09
  6. Step 6: Final answer
    x = 1,532.41

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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.