Home / 2,320.10-3,480.95-1,021.38

Finding the Fourth Proportional to 2,320.10, 3,480.95 and 1,021.38

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Solution

The fourth proportional to 2,320.10, 3,480.95 and 1,021.38 is: 1,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.10 : 3,480.95 = 1,021.38 : x
  2. Step 2: Convert to fraction form
    2,320.10/3,480.95 = 1,021.38/x
  3. Step 3: Cross multiply
    2,320.10x = 3,480.95 × 1,021.38
  4. Step 4: Simplify right side
    2,320.10x = 3,555,372.71
  5. Step 5: Solve for x
    x = 3,555,372.71/2,320.10
  6. Step 6: Final answer
    x = 1,532.42

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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.