Home / 2,320.38-3,480.71-1,021.68

Finding the Fourth Proportional to 2,320.38, 3,480.71 and 1,021.68

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Solution

The fourth proportional to 2,320.38, 3,480.71 and 1,021.68 is: 1,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.38 : 3,480.71 = 1,021.68 : x
  2. Step 2: Convert to fraction form
    2,320.38/3,480.71 = 1,021.68/x
  3. Step 3: Cross multiply
    2,320.38x = 3,480.71 × 1,021.68
  4. Step 4: Simplify right side
    2,320.38x = 3,556,166.68
  5. Step 5: Solve for x
    x = 3,556,166.68/2,320.38
  6. Step 6: Final answer
    x = 1,532.58

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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.