Home / 2,851.62-3,935.34-1,575.51

Finding the Fourth Proportional to 2,851.62, 3,935.34 and 1,575.51

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Solution

The fourth proportional to 2,851.62, 3,935.34 and 1,575.51 is: 2,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.62 : 3,935.34 = 1,575.51 : x
  2. Step 2: Convert to fraction form
    2,851.62/3,935.34 = 1,575.51/x
  3. Step 3: Cross multiply
    2,851.62x = 3,935.34 × 1,575.51
  4. Step 4: Simplify right side
    2,851.62x = 6,200,167.52
  5. Step 5: Solve for x
    x = 6,200,167.52/2,851.62
  6. Step 6: Final answer
    x = 2,174.26

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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.