Home / 2,021.07-2,785.91-1,851.58

Finding the Fourth Proportional to 2,021.07, 2,785.91 and 1,851.58

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Solution

The fourth proportional to 2,021.07, 2,785.91 and 1,851.58 is: 2,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.07 : 2,785.91 = 1,851.58 : x
  2. Step 2: Convert to fraction form
    2,021.07/2,785.91 = 1,851.58/x
  3. Step 3: Cross multiply
    2,021.07x = 2,785.91 × 1,851.58
  4. Step 4: Simplify right side
    2,021.07x = 5,158,329.46
  5. Step 5: Solve for x
    x = 5,158,329.46/2,021.07
  6. Step 6: Final answer
    x = 2,552.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.