Home / 3,141.38-4,334.77-1,815.51

Finding the Fourth Proportional to 3,141.38, 4,334.77 and 1,815.51

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Solution

The fourth proportional to 3,141.38, 4,334.77 and 1,815.51 is: 2,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.38 : 4,334.77 = 1,815.51 : x
  2. Step 2: Convert to fraction form
    3,141.38/4,334.77 = 1,815.51/x
  3. Step 3: Cross multiply
    3,141.38x = 4,334.77 × 1,815.51
  4. Step 4: Simplify right side
    3,141.38x = 7,869,804.30
  5. Step 5: Solve for x
    x = 7,869,804.30/3,141.38
  6. Step 6: Final answer
    x = 2,505.21

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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.