Home / 3,028.07-4,174.47-2,142.32

Finding the Fourth Proportional to 3,028.07, 4,174.47 and 2,142.32

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Solution

The fourth proportional to 3,028.07, 4,174.47 and 2,142.32 is: 2,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.07 : 4,174.47 = 2,142.32 : x
  2. Step 2: Convert to fraction form
    3,028.07/4,174.47 = 2,142.32/x
  3. Step 3: Cross multiply
    3,028.07x = 4,174.47 × 2,142.32
  4. Step 4: Simplify right side
    3,028.07x = 8,943,050.57
  5. Step 5: Solve for x
    x = 8,943,050.57/3,028.07
  6. Step 6: Final answer
    x = 2,953.38

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Half scale
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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.