Home / 3,849.57-5,312.40-2,081.17

Finding the Fourth Proportional to 3,849.57, 5,312.40 and 2,081.17

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Solution

The fourth proportional to 3,849.57, 5,312.40 and 2,081.17 is: 2,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.57 : 5,312.40 = 2,081.17 : x
  2. Step 2: Convert to fraction form
    3,849.57/5,312.40 = 2,081.17/x
  3. Step 3: Cross multiply
    3,849.57x = 5,312.40 × 2,081.17
  4. Step 4: Simplify right side
    3,849.57x = 11,056,007.51
  5. Step 5: Solve for x
    x = 11,056,007.51/3,849.57
  6. Step 6: Final answer
    x = 2,872.01

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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.