Home / 3,133.14-4,721.72-2,821.17

Finding the Fourth Proportional to 3,133.14, 4,721.72 and 2,821.17

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Solution

The fourth proportional to 3,133.14, 4,721.72 and 2,821.17 is: 4,251.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.14 : 4,721.72 = 2,821.17 : x
  2. Step 2: Convert to fraction form
    3,133.14/4,721.72 = 2,821.17/x
  3. Step 3: Cross multiply
    3,133.14x = 4,721.72 × 2,821.17
  4. Step 4: Simplify right side
    3,133.14x = 13,320,774.81
  5. Step 5: Solve for x
    x = 13,320,774.81/3,133.14
  6. Step 6: Final answer
    x = 4,251.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.