Home / 2,141.84-3,212.47-581.95

Finding the Fourth Proportional to 2,141.84, 3,212.47 and 581.95

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Solution

The fourth proportional to 2,141.84, 3,212.47 and 581.95 is: 872.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.84 : 3,212.47 = 581.95 : x
  2. Step 2: Convert to fraction form
    2,141.84/3,212.47 = 581.95/x
  3. Step 3: Cross multiply
    2,141.84x = 3,212.47 × 581.95
  4. Step 4: Simplify right side
    2,141.84x = 1,869,477.94
  5. Step 5: Solve for x
    x = 1,869,477.94/2,141.84
  6. Step 6: Final answer
    x = 872.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.